Utility Commands on Cisco IOS XR Software

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Utility Commands on Cisco IOS XR Software

Contents

Utility Commands on Cisco IOS XR Software

utility bc

utility cut

utility date

utility date set

utility df

utility du

utility egrep

utility fgrep

utility find

utility head

utility less

utility mv

utility sort

utility tail

utility uniq

utility wc

utility which

utility xargs

Utility Commands on Cisco IOS XR Software

This module describes the utility commands for Cisco IOS XR software. Utility commands provide CLI equivalents to common UNIX commands.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. For example, the universal keyword can also be entered using the UNIX-equivalent (-u). To display the UNIX-equivalent syntax online, enter the usage keyword.

utility bc

utility cut

utility date

utility date set

utility df

utility du

utility egrep

utility fgrep

utility find

utility head

utility less

utility mv

utility sort

utility tail

utility uniq

utility wc

utility which

utility xargs
utility bc
To implement an arbitrary precision calculator, use the utility bc command in EXEC mode or administration EXEC mode.

utility bc [ file input-file ]

Syntax Description

file input-file

(Optional) Specifies the text file containing commands and function definitions to be interpreted by the bc utility.

After all files have been read, the bc utility reads input from the standard input (keyboard). If no files are specified, then only the standard input (keyboard) is used.

The syntax of the input-file argument is as follows: device :[/ directory-path]/ filename

Possible values of the device: argument are:

bootflash:

Uses a file from the bootflash: file system.

compactflash:

Uses a file from the compactflash: file system.

compactflasha:

Uses a file from compactflasha: file system partition.

disk0:

Uses a file from disk0: file system.

disk0a:

Uses a file from disk0a: file system partition.

disk1:

Uses a file from disk1: file system.

disk1a:

Uses a file from disk1a: file system partition.

flash:

Uses a file from the flash: file system. The flash: keyword is alias for bootflash:.

ftp:

Uses a file from an FTP network server. The syntax is ftp:[[[//username[:password]@]location]/directory]/filename

harddisk:

Uses a file from the hard disk drive file system (if present).

harddiska:

Uses a file from the hard disk partition (if present).

nvram:

Uses a file from the nvram: file system.

ipv4

Uses a file from an IPv4 access list or prefix list.

ipv6

Uses a file from an IPv6 access list or prefix list.

rcp:

Uses a file from a remote copy protocol (rcp) network server. The syntax is rcp:[[[//username@]location]/directory]/filename

tftp:

Uses a file from a TFTP network server. The syntax is tftp:[[//location]/directory]/filename

Use the online help ( ? ) function to display the available devices and network protocols.

Command Default

If an input file is not specified, the standard input (keyboard) is used.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following file systems were added: disk0a: , disk1a: and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Use the command to use the interactive, programmable calculator that supports a complete set of control structures, including functions. The utility first processes any specified files, and then reads input from the keyboard (standard input).

Input files (and standard input) are ASCII text files containing sequences of bc statements to be executed.

Note

The bc utility uses the bc programming language, an arbitrary precision calculator language with syntax similar to the C programming language. The bc utility does not support character or string manipulation.

The bc utility supports:

26 functions

26 simple variables

26 array variables (up to 2048 elements per array).

The bc utility supports the following common programming language constructs:

“if”, “while”, and “for” statements

User-defined functions with parameters

Local variables

In the syntax for the ftp: , rcp: , and tftp: network protocols, the location is either an IP address or a hostname. The filename is specified relative to the directory used for file transfers.

When no device is specified, the current directory is used. To view the current directory, enter the pwd command.

describes the network protocols supported by Cisco IOS XR software.

Table 1 Network Protocols Supported by Cisco IOS XR Software

Prefix

Name

Description

tftp:

Trivial File Transfer Protocol

TFTP is a simplified version of FTP that allows files to be transferred from one computer to another over a network, usually without the use of client authentication (for example, username and password).

ftp:

File Transfer Protocol

FTP is an application protocol, part of the TCP/IP protocol stack, and is used for transferring files between network nodes. FTP requires a username and password.

rcp:

remote copy protocol

Rcp is a protocol that allows users to copy files to and from a file system residing on a remote host or server on the network. Rcp uses TCP to ensure the reliable delivery of data. Rcp downloads require a username.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is used to execute the bc statements contained in the ASCII text file exp.txt:
RP/0/0/CPU0:router# utility bc file disk0:/usr/exp.txt

50
15
25
3
17
   
utility cut
To extract selected characters or fields from standard input or from a file, use the utility cut command in EXEC mode or administration EXEC mode.

utility cut { { list character-list | fields field-list [nodelim] [ delimiter delimiter-character ] | WORD } [ file input-file ] | usage }

Syntax Description

list character-list

(-c) Cuts out the characters that are located on each line as specified with the character-list argument.

The character-list argument specifies the character positions or range of the characters to be cut.

Use a comma (,) to indicate more than one character. For example, utility list 1,2,5 outputs the first, second, and fifth characters.

Use a dash (-) to indicate a range. For example, utility list 1-64 outputs the first 64 characters of each line, utility list 5- outputs the fifth character to the end of the line.

Note
Lines are separated by a delimiter. The default delimiter is tab.

fields field-list

(-f) Cuts out the fields (lines) as indicated with the field-list argument.

The field-list argument specifies the field numbers or ranges. For example, utility field 2,9 outputs the second and ninth fields, utility field 1-3 outputs the first three fields, utility field -6 outputs the first six fields.

Note
The fields indicated by the field-list argument are assumed to be separated in the file by a delimiter character. The default delimiter is tab. Use the delimiter delimiter option to specify a delimiter character. Lines without field delimiters are processed unless the nodelim keyword is specified.

nodelim

(Optional) (-s) Ignores lines with no delimiter. Use this optional keyword when the fields field-list keyword and argument is specified.

delimiter delimiter-character

(Optional) (-d) Specifies an alternative delimiter to indicate the end of each field. Replace the delimiter-character argument with the character used as the delimiter.

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

file input-file

(Optional) Storage device and directory path of the text file used instead of the standard input (keyboard input).

The syntax of the input-file argument is: device :[/ directory-path]/ filename

The device argument, followed by a colon, indicates the name of the device where the file is located. Use the online help ( ? ) function to display the available storage devices and network protocols.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

If no file is specified, the keyboard input (standard input) is used.

The delimiter is tab.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

The command cuts out columns, fields, or characters displayed from standard input or from a file.

Use the fields field-list keyword and argument if the fields vary in length from line to line. (The lines must be separated by a delimiter character.) By default, the field delimiter character is the Tab key. Use the delimiter delimiter-character keyword and argument to specify a different delimiter.

Use the list character-list keyword and argument only if the fields are of a fixed length. Replace the character-list argument with the character positions to be extracted.

For the character-list argument, use a comma (,) to indicate more than one character, or use a dash (-) to indicate a range. For example, utility list 1,2,5 outputs the first, second, and fifth characters, utility list 1-64 outputs the first 64 characters of each line, utility list 5- outputs the fifth character to the end of the line.

You can also use the cut utility as a filter. If no files are specified, the keyboard input (standard input) is used.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. For example, the fields keyword can also be entered using the UNIX-equivalent (-f). To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is entered with the list character-list keyword and argument to display the first 10 characters in each line. The output is from the results of the show version command, which is entered with the pipe (|) character:
RP/0/0/CPU0:router# show version | utility cut list 1-10

Thu Feb 19 15:05:18.772 PST DST

Cisco IOS 
Copyright 

ROM: Syste
Copyright 

PE21_C1240
System ima

cisco 1240
7457 proce

2 Cisco 12
2 Cisco 12
1 Cisco 12
3 Manageme
8 PLIM_QOS
6 T3
6 SONET/SD
6 Packet o
2 GigabitE
28 T1
 --More--
        
       
In the following example, the command is used to extract fields from a file:
RP/0/0/CPU0:router# utility cut fields 1,5 delimiter : file disk0:/usr/passwd
  
  root:Super-User
  daemon:
  bin:
  sys:
  adm:Admin
  lp:Line Printer Admin
  uucp:uucp Admin
  nuucp:uucp Admin
  listen:Network Admin
  nobody:Nobody
  
  
In the following example, the command is used with the delimiter keyword to specify an alternative field delimiter:
RP/0/0/CPU0:router# utility cut fields 1,4,5 delimiter : file disk0:/usr/passwd
  
  root:1:Super-User
  daemon:1:
  bin:2:
  sys:3:
  adm:4:Admin
  lp:8:Line Printer Admin
  uucp:5:uucp Admin
  nuucp:9:uucp Admin
  listen:4:Network Admin
  
  
In the following example, a range of fields is specified:
RP/0/0/CPU0:router# utility cut fields 1-4 delimiter : file disk0:/usr/passwd 
  
  root:x:0:1
  daemon:x:1:1
  bin:x:2:2
  sys:x:3:3
  adm:x:4:4
  lp:x:71:8
  uucp:x:5:5
  nuucp:x:9:9
  listen:x:37:4
  
  
  
In the following example, the list character-list keyword and argument are used to specify the character positions to be extracted:
RP/0/0/CPU0:router# utility cut list 1-30 file disk0:/usr/passwd
  
  root:x:0:1:Super-User:/:/sbin/
  daemon:x:1:1::/:
  bin:x:2:2::/usr/bin:
  sys:x:3:3::/:
  adm:x:4:4:Admin:/var/adm:
  lp:x:71:8:Line Printer Admin:/
  uucp:x:5:5:uucp Admin:/usr/lib
  nuucp:x:9:9:uucp Admin:/var/sp
  listen:x:37:4:Network Admin:/u
  nobody:x:60001:60001:Nobody:/:
  noaccess:x:60002:60002:No Acce
  nobody4:x:65534:65534:SunOS 4.
  
  ==========================================================================
  
In the following example, the UNIX equivalent options are used directly. First, the command is entered with the usage keyword to display the possible options. Next, the command is entered with the options to extract the desired data.
RP/0/0/CPU0:router# utility cut usage
  
  cut -c list [file], cut -f list [-d delim] [-s] [file]
  
RP/0/0/CPU0:router# utility cut -f 1,4 -d : disk0:/usr/passwd
  
  root:1
  daemon:1
  bin:2
  sys:3
  adm:4
  lp:8

  
Related Commands

Command

Description

utility head

Copies bytes or lines at the beginning of the output displayed from standard input or a file.

utility sort

Sorts, merges, or sequence-checks the output displayed from standard input or a file.

utility tail

Copies the end portion of the output displayed from standard input or a file.
utility date
To display the date and time, use the utility date command in EXEC mode or administration EXEC mode.

utility date { format word | universal | usage | WORD }

Syntax Description

format word

(Optional) (+) Specifies the format for the date display. Use the online help system to display the available format syntax for the word argument.

universal

(Optional) (-u) Displays the date in Coordinated Universal Time (UTC) instead of local time. UTC is the standard term for Greenwich Mean Time (GMT).

usage

(Optional) Displays the UNIX options supported by this command.

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

Command Default

The date is displayed in local time.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

No modification.

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

The command displays the internal time and date for the router.

Use the format word option to specify the format and content of the displayed date and time. The format is composed of ASCII characters and field descriptors prefaced with %, in a manner similar to a C-language printf() format specifier. In the output, each field descriptor is replaced by its corresponding value; all other characters are copied to the output without change. The format is specified using the following characters:

%C

Century in 'CC' form. For example: 20

%y

Year in 'YY' form. For example: 06

%m

Month in 'MM' form. For example: 08

%d

Date in 'DD' form. For example: 28

%H

Hour in 'hh (24 hr.)' form. For example: 18

%M

Minutes in 'mm' form. For example: 55

%S

seconds in 'ss' form. For example: 24

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. For example, the universal keyword can also be entered using the UNIX-equivalent (-u). To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

The following example shows how to display the router date and time using the command:
RP/0/0/CPU0:router# utility date 
  
  Fri Aug 04 11:53:38 UTC 2006
  
  
The following example shows how to display the router date and time using a variety of options with the format keyword:
RP/0/0/CPU0:router# utility date format "%y%m%d"
  
  060828
  
RP/0/0/CPU0:router# utility date format "%y-%m-%d" 
  
  06-08-28
  
RP/0/0/CPU0:router# utility date format "%C%y-%m-%d"
  
  2006-08-28
  
RP/0/0/CPU0:router# utility date format "%C%y-%m-%d:%H:%M:%S"
  
  2006-08-28:02:09:58
  
RP/0/0/CPU0:router# utility date format "DATE: %y-%m-%d %nTIME: %H:%M:%S"
  
  DATE: 06-09-17 
  TIME: 12:42:24
  
  
Related Commands

Command

Description

utility date set

Sets the internal date and time of the router.
utility date set
To set the router time, use the utility date set command in administration EXEC mode.

utility date set hh:mm:ss

Syntax Description

hh

Specifies the hour in 2-digit numerical format. Range is 00 to23.

mm

Specifies the minutes in 2-digit numerical format. Range is 0 to 59.

SS

Specifies the seconds in 2-digit numerical format. Range is 0 to 59.

Command Default

No default behavior or values

Command Modes

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

No modification.

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

A colon (:) is required between the entry for hour, minutes, and seconds.

Note

Generally, if the system is synchronized by a valid outside timing mechanism, such as a Network Time Protocol (NTP) clock source, or if you have a networking device with calendar capability, you need not set the software clock. Use the date command or the clock set command if no other time sources are available.

Note

To manually copy the hardware clock (calendar) settings into the software clock, use the clock read-calendar command in EXEC mode.

By default, the system makes a “slow adjustment” if the new time is in the range of the following:

–2.5 minutes + old time

5 minutes + old time

In a slow adjustment, the clock speed increases by less than 100 percent or decreases by less than 50 percent over a period of time from 1 second to 5 minutes until the clock catches up with the new time. This slow adjustment does not cause major discontinuities in the time flow. Use the -S0 option to disable the slow adjustment.

Task ID

Task ID

Operations

universal

execute
Examples

The following example shows how to set the time using the command:
RP/0/0/CPU0:router(admin)# utility date set 13:07:00 

  Fri Sep 15 13:07:00 UTC 2006
  
  
Related Commands

Command

Description

utility date

Displays the internal date and time of the router.
utility df
To display the amount of disk space available for a directory or file, use the utility df command in EXEC mode or administration EXEC mode.

utility df [ [WORD] [kbytes] [mountinfo] [vsfStats] [ file input-file ] | usage ]

Syntax Description

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

kbytes

(Optional) (-k) Displays the sizes in 1-K blocks (1024-byte units) instead of the default of 512 byte blocks.

mountinfo

(Optional) (-n) Displays the file-system mountpoints and types only.

vsfStats

(Optional) (-g) Displays all statvfs() information.

file input-file

(Optional) Specifies the storage device and directory path of the device, directory, or file. When a directory or file is specified, the df utility displays the amount of space on the file system that contains the directory or file.

If no files are specified, then only the standard input (keyboard) is used.

The syntax of the input-file argument is as follows: device :[/ directory-path]/ filename

The device argument, followed by a colon, indicates the name of the device where the file is located. Use the online help ( ? ) function to display the available storage devices and network protocols.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

Information is displayed for all file systems.

The results are displayed in 512-byte blocks.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Use the (disk free) command to display the amount of disk space available for a device, directory, or file. Enter the command without keywords or arguments to display information for all mounted file systems.

Use the vsfStats keyword to invoke the statvfs() function, which provides additional details for all mounted file systems.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. For example, the kbytes keyword can also be entered using the UNIX-equivalent (-k). To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the (disk free) command is entered without keywords or arguments to display information for all file systems:
RP/0/0/CPU0:router(admin)# utility df        
  
  /dev/hd0t6              77987744     61592  77926152       1%  /harddisk:/     
  /nvram:                     4086        60      4026       2%                  
  /dev/disk1t6             2001280    382720   1618560      20%  /disk1:/        
  /dev/disk0t6             2001184    533568   1467616      27%  /disk0:/        
  /dev/fs0p1                121856        68    121787       1%  /bootflash: 
  
  
See for column descriptions.

In the following example, the kbytes keyword is used to display information in 1-K blocks (1024-byte units) instead of the default of 512-byte blocks:
RP/0/0/CPU0:router(admin)# utility df kbytes 
  
  /dev/hd0t6              38993872     30796  38963076       1%  /harddisk:/     
  /nvram:                     2043        30      2013       2%                  
  /dev/disk1t6             1000640    191360    809280      20%  /disk1:/        
  /dev/disk0t6             1000592    266784    733808      27%  /disk0:/        
  /dev/fs0p1                 60928        34     60893       1%  /bootflash:     
  
  
See for column descriptions.

In the following example, the mountinfo keyword is used to display file-system mountpoints and types only:
RP/0/0/CPU0:router(admin)# utility df mountinfo 
  
  Filesystem           Mounted on        Type            
  /dev/hd0t6           /harddisk:/       dos (fat32)     
  /nvram:                                                
  /dev/disk1t6         /disk1:/          dos (fat16)     
  /dev/disk0t6         /disk0:/          dos (fat16)     
  /dev/fs0p1           /bootflash:       flash      
  
  
In the following example, the vfsStats keyword is used to invoke the statvfs() function, which provides additional details for all mounted file systems:
RP/0/0/CPU0:router(admin)# utility df vfsStats 
  
  /dev/hd0t6   /harddisk:/
      Blocks:  9748468 total   9740769 avail   [4096-byte blocks]
      Files :        0 total         0 avail
      Type  : dos (fat32)
      Flags : 00000120 [32bit, noatime]
  
  /nvram:   
      Blocks:     2043 total      2013 avail   [1024-byte blocks]
      Files :        0 total         0 avail
      Type  : 
      Flags : 00000000 []
  
  /dev/disk1t6   /disk1:/
      Blocks:    62540 total     50580 avail   [16384-byte blocks]
      Files :        0 total         0 avail
      Type  : dos (fat16)
      Flags : 00000120 [32bit, noatime]
  
  /dev/disk0t6   /disk0:/
      Blocks:    62537 total     45863 avail   [16384-byte blocks]
      Files :        0 total         0 avail
      Type  : dos (fat16)
      Flags : 00000120 [32bit, noatime]
  
  /dev/fs0p1   /bootflash:
      Blocks: 62390272 total  62355240 avail   [1-byte blocks]
      Files :        2 total         0 avail
      Type  : flash
      Flags : 00000000 []
  
  
describes the significant fields shown in the display.

Table 2 utility df Field Descriptions

Field

Description

Files

Number of files in the file system.

Blocks

Amount of space available on the file system in 1-K blocks.

Total

Amount of disk space used by the directory or file.

Avail

Amount of space available for use by the directory or file on the file system.

Type

Type of file system.

Flags

Displays the file system properties.

In the following example, the file source keyword and argument are used to specify a directory:
RP/0/0/CPU0:router(admin)# utility df file disk0:/usr 
  
  /dev/disk0t6             2001184    533568   1467616      27%  /disk0:/ 
  
  
describes the significant fields shown in the display.

Table 3 utility df Column Descriptions (left to right)

Field

Description

Filesystem

File system for the displayed information.

1k-blocks

Amount of space available on the file system in 1-K blocks.

Used

Amount of disk space used by the directory or file.

Available

Amount of space available for use by the directory or file on the file system.

Use%

Percentage of space used on the file system.

Mounted on

Storage device where the file system is mounted.
Related Commands

Command

Description

utility du

Displays the amount of disk space used by one or more directories or files.
utility du
To display the amount of disk space used in a device, directory, or file, use the utility du command in EXEC mode or administration EXEC mode.

utility du [ [ all | specified ] [ kbytes | bytes | local ] [WORD] [ file source ] | usage ]

Syntax Description

all

(Optional) (-a) Displays the disk space used for each file in the directory. By default, information is displayed only for the directory. Use the all keyword to display the total disk space used by all files in the directory, including the directory itself.

specified

(Optional) (-s) Displays the total disk space used for each specified file, rather than the totals for any subdirectories.

kbytes

(Optional) (-k) Displays the disk space used in 1-K blocks (1024-byte units) instead of the default of 512-byte blocks.

bytes

(Optional) (-p) Displays the disk space used in bytes (the default is 512-byte blocks). Also generates error messages for exiting files that cannot be displayed.

local

(Optional) (-x) Displays information for the local device only.

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

file source

(Optional) Displays the disk space used for a device, directory, or file.

The syntax for the source argument is device : / directory-path[/ filename]

The device argument, followed by a colon, indicates the name of the device where the file is located. Use the online help ( ? ) function to display the available storage devices and network protocols.

Enter the command without specifying a device, directory, or file to display information for the current directory, and subdirectories. (The command behaves as if the filename dot (.) is entered.)

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

Information for the current directory is displayed.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Enter the command without specifying a file to display information for the current directory. The command behaves as if the filename dot (.) is entered.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. For example, the kbytes keyword can also be entered using the UNIX-equivalent (-k). To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is used to display the disk space used for the subdirectories in the MPLS package directory:
RP/0/0/CPU0:router# utility du file disk0:/c12k-mpls-3.4.0
  
            160 /disk0:/c12k-mpls-3.4.0/schema
            104 /disk0:/c12k-mpls-3.4.0/lib/cerrno
            625 /disk0:/c12k-mpls-3.4.0/lib/mib
           2545 /disk0:/c12k-mpls-3.4.0/lib
           9658 /disk0:/c12k-mpls-3.4.0/bin
             39 /disk0:/c12k-mpls-3.4.0/startup
            840 /disk0:/c12k-mpls-3.4.0/parser
             37 /disk0:/c12k-mpls-3.4.0/configs
             35 /disk0:/c12k-mpls-3.4.0/mib
             35 /disk0:/c12k-mpls-3.4.0/rules
             34 /disk0:/c12k-mpls-3.4.0/partitions
            135 /disk0:/c12k-mpls-3.4.0/etc/compat
            167 /disk0:/c12k-mpls-3.4.0/etc
             66 /disk0:/c12k-mpls-3.4.0/instdb_v
            181 /disk0:/c12k-mpls-3.4.0/lc/bin
             33 /disk0:/c12k-mpls-3.4.0/lc/startup
            246 /disk0:/c12k-mpls-3.4.0/lc
            112 /disk0:/c12k-mpls-3.4.0/instdb
          14006 /disk0:/c12k-mpls-3.4.0
  
  
In the following example, the command is used to display the disk space used for a subdirectories:
RP/0/0/CPU0:router# utility du file disk0:/
c12k
-mpls-3.8.0/configs
  
37 /disk0:/c12k-mpls-3.8.0/configs             
  
  
In the following example, the command is used to display the disk space used for the current working directory:
RP/0/0/CPU0:router# cd disk0:/
c12k
-mpls-3.8.0
RP/0/0/CPU0:router# utility du 
  
            160 ./schema
            104 ./lib/cerrno
            625 ./lib/mib
           2545 ./lib
           9658 ./bin
             39 ./startup
            840 ./parser
             37 ./configs
             35 ./mib
             35 ./rules
             34 ./partitions
            135 ./etc/compat
            167 ./etc
             66 ./instdb_v
            181 ./lc/bin
             33 ./lc/startup
            246 ./lc
            112 ./instdb
          14006 .
  
  
Related Commands

Command

Description

utility df

Displays the amount of disk space available for a directory or file.
utility egrep
To search a file or the results of standard input using full regular expressions, use the utility egrep command in EXEC mode or administration EXEC mode.

utility egrep { [ expr expression | script expression-file ] [WORD] [count] [linenum] [matchfile] [matchline] [nocase] [nofile] [reverse] [ file search-file ] | usage }

Syntax Description

expr expression

(-e) A regular expression, whose type is determined by the -e and -f options. This form is used when only one expression is specified on the command line. Any names specified after this option are treated as input files.

script expression-file

(-f) A file containing a set of regular expressions, each separated by a new line. The type of the expressions is determined by the -e and -f options. This form is used when more than one expression is specified. You can specify more than one -f option.

The syntax of the expression-file argument is: [device :]/ filename

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 20.

count

(Optional) (-c) Displays a count of selected lines.

linenum

(Optional) (-n) Before each output line, displays the line's line number.

matchfile

(Optional) (-l) (“el”) Displays only the names of files containing the selected lines.

matchline

(Optional) (-x) Includes only input lines selected against an entire fixed string or regular expression.

nocase

(Optional) (-i) Ignores uppercase and lowercase distinctions during comparisons.

nofile

(Optional) (-h) Displays results without a filename prefix attached to the matched lines. This option applies only when more than one file is searched.

reverse

(Optional) (-v) Selects only those lines that don't match the specified patterns.

file search-file

(Optional) The file used for the search. Replace the search-file argument with the device and directory path of the file. The syntax for the search-file argument is: [device :]/ filename .

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

If no files are specified, the keyboard input (standard input) is used.

If more than one input file is specified, then the filename is displayed before each line.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

The grep utility searches files for character patterns using regular expressions and returns all lines that contain that pattern. The command uses full regular expressions (expressions using the full set of alphanumeric and special characters) to match the patterns.

The results are displayed to the standard output (terminal screen).

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. For example, the count keyword can also be entered using the UNIX-equivalent (-c). To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is used to locate the regular expression “uptime”. The linenum keyword is also entered to display the line number before each line of output.
RP/0/0/CPU0:router# show version | utility egrep expr uptime linenum 

7:router uptime is 5 days, 19 hours, 27 minutes
  
  
In the following example, the command is used to locate a regular expression in a file. In this example, all lines with “adm” are displayed. The * character is used as a wildcard.
RP/0/0/CPU0:router# utility egrep expr Adm* nofile file disk0:/usr/passwd
  
adm:x:4:4:Admin:/var/adm:
lp:x:71:8:Line Printer Admin:/usr/spool/lp:
uucp:x:5:5:uucp Admin:/usr/lib/uucp:
nuucp:x:9:9:uucp Admin:/var/spool/uucppublic:/usr/lib/uucp/uucico
listen:x:37:4:Network Admin:/usr/net/nls:
ssadmin:x:901218:60001:Sun StorEdge(tm) Configuration Service Agent Admin:/:/bin/false  
  
In the following example, the nocase keyword is used to ignore the character case:
RP/0/0/CPU0:router# utility egrep expr Adm* nocase file disk0:/usr/passwd  
  
adm:x:4:4:Admin:/var/adm:
lp:x:71:8:Line Printer Admin:/usr/spool/lp:
uucp:x:5:5:uucp Admin:/usr/lib/uucp:
nuucp:x:9:9:uucp Admin:/var/spool/uucppublic:/usr/lib/uucp/uucico
listen:x:37:4:Network Admin:/usr/net/nls:
ssadmin:x:901218:60001:Sun StorEdge(tm) Configuration Service Agent Admin:/:/bin/false
  
  
In the following example, the linenum keyword is used to append the line number to the beginning of each output line:
RP/0/0/CPU0:router# utility egrep expr Adm* linenum file disk0:/usr/passwd
  
  5:adm:x:4:4:Admin:/var/adm:
  6:lp:x:71:8:Line Printer Admin:/usr/spool/lp:
  7:uucp:x:5:5:uucp Admin:/usr/lib/uucp:
  8:nuucp:x:9:9:uucp Admin:/var/spool/uucppublic:/usr/lib/uucp/uucico
  9:listen:x:37:4:Network Admin:/usr/net/nls:
  15:ssadmin:x:901218:60001:Sun StorEdge(tm) Configuration Service Agent Admin:/:/bin/false
  
  
Related Commands

Command

Description

utility fgrep

Searches a file for a fixed character string.
utility fgrep
To search a file for a fixed character string, use the utility fgrep command in EXEC mode or administration EXEC mode.

utility fgrep { [ expr expression | script expression-file ] [WORD] [count] [linenum] [matchfile] [matchline] [nocase] [nofile] [reverse] [ file search-file ] | usage }

Syntax Description

expr expression

(-e) A regular expression, whose type is determined by the -e and -f options. This form is used when only one expression is specified on the command line. Any names specified after this option are treated as input files.

script expression-file

(-f) A file containing a set of regular expressions, each separated by a new line. The type of the expressions is determined by the -e and -f options. This form is used when more than one expression is specified. You can specify more than one -f option.

The syntax of the expression-file argument is: device :[/ directory-path]/ filename

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 20.

count

(Optional) (-c) Displays a count of selected lines.

linenum

(Optional) (-n) Before each output line, displays the line's line number.

matchfile

(Optional) (-l) (“el”) Displays only the names of files containing the selected lines.

matchline

(Optional) (-x) Includes only input lines selected against an entire fixed string or regular expression.

nocase

(Optional) (-i) Ignores uppercase and lowercase distinctions during comparisons.

nofile

(Optional) (-h) Displays results without a filename prefix attached to the matched lines. This option applies only when more than one file is searched.

reverse

(Optional) (-v) Selects only those lines that don't match the specified patterns.

file search-file

(Optional) The file used for the search. Replace the search-file argument with the device and directory path of the file. The syntax for the search-file argument is: device :[/ directory-path]/ filename

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

The keyboard input (standard input) is used if no files are specified.

If more than one input file is specified, then the filename is displayed before each line.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

The command searches files for a fixed character string (as opposed to grep and egrep, which search for a a pattern that matches an expression).

The results are displayed to the standard output (terminal screen).

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. For example, the count keyword can also be entered using the UNIX-equivalent (-c). To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

The following example, the command is used with the nocase and linenum keywords:
RP/0/0/CPU0:router# show version | utility fgrep expr uptime nocase linenum 
  
  7:router uptime is 5 days, 20 hours, 10 minutes
    
Related Commands

Command

Description

utility egrep

Searches a file using full regular expressions.
utility find
To locate files within one or more directories, use the utility find command in EXEC mode or administration EXEC mode.

utility find { path directory-path { LINE | name filename-pattern | user user-id } | usage }

Syntax Description

path directory-path

Specifies the storage device and directory for the file search. The search is performed for the specified directory and all subdirectories in that directory tree.

If a directory path is not specified, then the search is performed in the current directory (a path of . [dot] is assumed).

LINE

(Optional) UNIX command-line expressions provided as a string.

name filename-pattern

(Optional) Searches for the name of the file. The filename-pattern argument is a regular expression string.

user user-id

(Optional) Searches for files belonging to a specific user. The user-id argument is the username of the file owner.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

If a directory path is not specified, then the search is performed in the current directory.

If a name filename-pattern is not specified, then the search return all files in the specified directory.

If a user is not specified, then the search is performed for all users.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Use the command to locate files within one or more directories. You can perform the search for a specific directory (and its subdirectories). If a directory is not specified, then the search is performed for the current directory.

To search for a regular expression string, use the name filename-pattern keyword and argument. Replace the filename-pattern argument with the regular expression string. If this option is not used, then all files within the specified directory are displayed.

To search for files belonging to a specific user, use the user-id argument. If this option is not used, then files belonging to all users are displayed.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is used to locate the file named “c12k-fwdg-3.8.0”. The path is the root directory of disk0:.
RP/0/RP0/CPU0:router# utility find path disk0: name c12k-fwdg-3.4.0
  
disk0:/instdb/admin_pkgs_mdata/c12k-fwdg-3.8.0
disk0:/c12k-fwdg-3.8.0
  
  
In the following example, the command is used to locate files matching a pattern. In this example, all files ending in “.txt” are displayed:
RP/0/0/CPU0:router# utility find path disk0:/usr name *.txt 
  
disk0:/usr/test2.txt
  
  
In the following example, the UNIX equivalent option is used to locate files matching a pattern. In this example, all files ending in “.txt” are displayed:
RP/0/0/CPU0:router# utility find path disk0: -name *.txt 
  
disk0:/c12k-base-3.8.0/etc/vim/doc/editing.txt
disk0:/c12k-base-3.8.0/etc/vim/doc/help.txt
disk0:/c12k-base-3.8.0/etc/vim/doc/intro.txt
disk0:/c12k-base-3.8.0/etc/vim/doc/uganda.txt
disk0:/usr/test2.txt
  
  
In the following example, the files belonging to a specific user are displayed:
RP/0/0/CPU0:router# utility find path disk0:/usr user 0
  
disk0:/usr
disk0:/usr/passwd
disk0:/usr/test2.txt
  
  
In the following example, the UNIX equivalent option is used to display files belonging to a specific user:
RP/0/0/CPU0:router# utility find path disk0:/usr -user 0
  
disk0:/usr
disk0:/usr/passwd
disk0:/usr/test2.txt

  
Related Commands

Command

Description

utility which

Locates a program file.
utility head
To copy bytes or lines at the beginning of a file or from the standard input, use the utility head command in EXEC mode or administration EXEC mode.

utility head [ WORD | [bytes] [ count number ] [ file source ] | usage ]

Syntax Description

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

bytes

(Optional) (-c) Copies the data in bytes from the beginning of each specified file. The default setting is to copy lines of data.

count number

(Optional) (-n) Specifies the number of lines (default) or bytes to be copied. The number argument is an unsigned decimal integer.

By default, the command copies the first ten units (lines or bytes) of the file. Use the count number option to change the default.

file source

(Optional) Specifies the storage device, directory, and filename for the files.

If a file is not specified, the standard input is used.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

If the command is entered without keywords or arguments, the first ten lines of the file or standard output are copied.

If no file is specified, then the standard input is used.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

The command copies the beginning bytes (default) or lines of one or more files to the standard output (usually the user interface display). Use the bytes or lines keywords to copy the data based on lines or bytes. Use the count number option to specify the number of bytes or lines to copy. By default, the command copies the first 10 lines of each file.

If more than one file is selected, an identifying header is added before the output for each file. If no file is specified, then the standard input (keyboard) is used.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is used to display the first 15 lines from the output of the show version command:
RP/0/0/CPU0:router# show version | utility head count 15

Wed Feb 11 17:55:16.016 PST DST

Cisco IOS XR Software, Version 3.8.0.30I[SIT_IMAGE]
Copyright (c) 2009 by Cisco Systems, Inc.

ROM: System Bootstrap, Version 12.0(20051020:160303) [sjabbar-CSCsa64979_4 1.17d
ev(0.5)] DEVELOPMENT SOFTWARE
Copyright (c) 1994-2005 by cisco Systems,  Inc.

PE21_C12406 uptime is 1 day, 17 hours, 9 minutes
System image file is "disk0:c12k-os-mbi-3.8.0.30I/mbiprp-rp.vm"

cisco 12406/PRP (7457) processor with 2097152K bytes of memory.
7457 processor at 1266Mhz, Revision 1.2

2 Cisco 12000 Series - Multi-Service Blade Controllers
2 Cisco 12000 Series SPA Interface Processor-601/501/401

RP/0/0/CPU0:PE21_C12406#

  
In the following example, the command is entered with the bytes keyword. Only the first 15 bytes of output are displayed.
RP/0/0/CPU0:router# show version | utility head count 15 bytes 
  
Cisco IOS XR S
  
RP/0/0/CPU0:router#

  
Related Commands

Command

Description

utility cut

Cuts characters or lines from the output displayed from standard input or a file.

utility sort

Sorts, merges, or sequence-checks the output displayed from standard input or a file.

utility tail

Copies the end portion of the output displayed from standard input or a file.
utility less
To display a file page-by-page, use the utility less command in EXEC mode or administration EXEC mode.

utility less { [exitEOF] [WORD] | nocase | position line-number | startat string } [ file source-file ]

Syntax Description

exitEOF

(Optional) (-E) Automatically exits the utility the first time an end-of-file is encountered.

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

nocase

(Optional) (-i) Ignores uppercase and lowercase distinctions during comparisons.

position line-number

(Optional) (-j) Uses the line at line-number on the screen to position matched lines during a patter search.

startat string

(Optional) (-p) Starts at the first occurrence of the pattern specified by the string argument in the file.

file source-file

(Optional) Specifies the storage device and directory path for the text file to be displayed. The default is standard input.

The syntax for the source-file argument is: device :[/ directory-path]/ filename

Command Default

If no text file is specified, standard input is assumed.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.5.0

This command was introduced.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Use the command to display files page by page. You can specify regular expressions for pattern matching using the startat keyword. You can scroll up as well as down. When you enter the less mode, commands are similar to the “vi” editor.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

The following example, the command is used to display the file “config_store”. Only part of the file is shown here.
RP/0/0/CPU0:router# utility less file disk0:/usr/config_store
  
  Last configuration change at Tue Feb 20 18:34:02 2007 by xxx
  !
  hostname H1
  line console
   exec-timeout 600 0
   session-timeout 600
  !
  line default
   exec-timeout 600 0
   session-timeout 600
  !
  .
  .
  .
  
utility mv
To rename or move a file from one directory to another, use the utility mv command in EXEC mode or administration EXEC mode.

utility mv { [ WORD | force | interactive ] source source-file target target-file | usage }

Syntax Description

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

force

(Optional) (-f) Forces an overwrite if the target file already exists. There is no confirmation prompt.

interactive

(Optional) (-i) Specifies to prompt for confirmation before renaming a file.

source source-file

Specifies the storage device, directory, and filename for the file to be moved.

target target-file

Specifies the new storage device, directory, and filename for the file.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

No default behavior or values

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is used to move the file “aaa” from disk0a: to disk1a:
RP/0/0/CPU0:router# utility mv source disk0a:/aaa target disk1a:/aaa
                     
Related Commands

Command

Description

utility cut

Cuts characters or lines from the output displayed from standard input or a file.

utility sort

Sorts, merges, or sequence-checks the output displayed from standard input or a file.

utility tail

Copies the end portion of the output displayed from standard input or a file.
utility sort
To sort, merge, or sequence-check the lines in one or more files, or from the standard input, use the utility sort command in EXEC mode or administration EXEC mode.

utility sort { [ [WORD] | [ [dict] [ fieldSep character ] [ignoreblank] [ key key-definition ] [lowercase] [merge] [numeric] [ outfile filename ] [printable] [reverse] [unique] ] ] [ file filename ] | usage }

Syntax Description

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

dict

(Optional) (-d) Sorts in dictionary order. Uses only alphanumeric and blank characters in the sort operation.

fieldSep character

(Optional) (-t) Specifies a character as the field separator.

ignoreblank

(Optional) (-b) Ignores leading blank characters in field comparisons.

key key-definition

(Optional) (-k) Defines a key to be the sort key. The key-definition argument field is defined using the following syntax:

field_start [type_string] [,field_end] [type_string]

field_start and field_end —Specifies the beginning and end of the key field.

type_string —Specifies attributes specific to the key.

The field_start and field_end arguments are each specified by a pair of digits of the form m.n, where the m refers to the field starting after the mth field separator in a line. For field_start, the .n refers to the nth character of the specified field, and is taken as zero if not specified. For field_end, the .n refers to the nth character after the last character of the specified field, and is taken as zero if not specified.

The type_string argument may be formed from the characters bdfinr, which apply their defined attributes to the determination of the key.

Note
When ordering options appear independent of key field specifications, the requested field ordering rules are applied globally to all sort keys. When attached to a specific key, the specified ordering options override all global ordering options for that key.

lowercase

(Optional) (-f) Folds uppercase letters into lowercase (ignores case and treats upper case characters the same as lowercase characters).

merge

(Optional) (-m) Merges sorted files. Assumes that the files are already sorted and so does not sort the files.

numeric

(Optional) (-n) Interprets the field as numeric and sorts in numeric order. Includes the sign and optional thousands separator. This keyword also ignores leading blank characters in field comparisons (implies the ignoreblank keyword).

outfile filename

(Optional) (-o) Writes the results to a file. The filename argument is the destination disk, directory, and filename. The filename argument can be the same as the source file.

printable

(Optional) (-i) Ignores all nonprintable characters.

reverse

(Optional) (-r) Reverses the sort order. The sort is ascending by default.

unique

(Optional) (-u) Suppresses all but one line in each set of lines having equal keys.

file filename

(Optional) Specifies a file to be sorted.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

If no file is specified, then the standard input (keyboard) is used.

If an outfile filename keyword and argument is not specified, then the standard output (display) is used.

The file is sorted in ascending order.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is used to sort the contents of the file “words.txt”:
RP/0/0/CPU0:router# utility sort file disk0:/usr/words.txt
  
   The 
   few
   inquires 
  A
  Code. 
  Date 
  Done
  This 
  best-selling 
  bestseller 
  book 
  come 
  concerning 
  fiction,
  have 
  its 
  list
  muscled 
  of 
  onto 
  our 
  the 
  way 
  way 
  work 
    
In the following example, only the unique characters in the file “words.txt” are displayed:
RP/0/0/CPU0:router# utility sort unique file disk0:/usr/words.txt
  
  Code. 
  Date
  best-selling 
  book 
  concerning 
  have 
  list
  of 
  our 
  way 
  work 
  
Related Commands

Command

Description

utility cut

Cuts characters or lines from the output displayed from standard input or a file.

utility head

Copies bytes or lines at the beginning of the output displayed from standard input or a file.

utility tail

Copies the end portion of the output displayed from standard input or a file.

utility uniq

Displays or removes repeated lines in a file.
utility tail
To copy the end portion of a file or the standard input, use the utility tail command in EXEC mode or administration EXEC mode.

utility tail { [ [WORD] | [bytes] [continuous] [ count number ] ] [ file input-file ] | usage }

Syntax Description

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

bytes

(Optional) (-c) Copies the end of the file measured in bytes. The default is lines.

continuous

(Optional) (-f) Continues to copy data from the end of the file after the last line is reached. The operation pauses for 1 second, and then resumes in a continuous loop.

The input file must be a regular file, not a terminal or a FIFO special file (a named pipe).

count number

(Optional) (-n) Copies the number of lines (default) or bytes specified with the number argument. The range is 0 to 4294967295. By default, the last 10 lines are copied.

The number argument is a decimal integer that defines the location in the file to begin copying:

Include the plus (+) character to copy from the beginning of the file.

Include the minus (-) character to copy from the end of the file.

Do not include a character to copy from the end of the file.

Note
Select the bytes keyword to copy the information measured in a count of bytes.

file input-file

(Optional) Directory path and filename for the input file. If no file is specified, then the standard input is used.

The syntax for the input-file argument is: device :[/ directory-path]/ filename

The device argument, followed by a colon, indicates the name of the device where the file is located. Use the online help ( ? ) function to display the available storage devices and network protocols.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

If the command is entered without keywords or arguments, the last 10 lines of the standard input are copied.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Use the command to copy data from the end of a file. By default, the last 10 lines are copied. Use the bytes keyword to copy the data measured in bytes. Use the count number option to define the number of lines or bytes to copy. Use the file filename option to specify an input file.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is used to display the last 10 lines of the output from the show version command:
RP/0/0/CPU0:router# show version | utility tail count 10

Wed Feb 11 18:56:36.831 PST DST
    By sjc-lds-364 in /auto/ioxbuild5/production/3.8.0.30I.SIT_IMAGE/c12k/workspace for c4.2.1-p0

c12k-base, V 3.8.0.30I[SIT_IMAGE], Cisco Systems, at disk0:c12k-base-3.8.0.30I
    Built on Mon Feb  2 06:36:15 PST 2009
    By sjc-lds-364 in /auto/ioxbuild5/production/3.8.0.30I.SIT_IMAGE/c12k/workspace for c4.2.1-p0

c12k-os-mbi, V 3.8.0.30I[SIT_IMAGE], Cisco Systems, at disk0:c12k-os-mbi-3.8.0.30I
    Built on Mon Feb  2 06:31:59 PST 2009
    By sjc-lds-364 in /auto/ioxbuild5/production/3.8.0.30I.SIT_IMAGE/c12k/workspace for c4.2.1-p0

  
In the following example, the utility tail command is used with the bytes keyword to display the last 10 bytes in the output:
RP/0/0/CPU0:router# show version | utility tail count 10 bytes 
  
  .95.3-p8
  
RP/0/0/CPU0:router#

  
Related Commands

Command

Description

utility cut

Cuts characters or lines from the output displayed from standard input or a file.

utility head

Copies bytes or lines at the beginning of the output displayed from standard input or a file.

utility sort

Sorts, merges, or sequence-checks the output displayed from standard input or a file.
utility uniq
To display or remove repeated lines in a file, use the utility uniq command in EXEC mode or administration EXEC mode.

utility uniq [ [ [WORD] | [ afterChars number ] [ afterField number ] [count] [ nonrepeating | repeating ] ] [ infile input-file outfile output-file ] | usage ]

Syntax Description

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

afterChars number

(Optional) (-s) Ignores the first characters on each line of the input file. Use the number argument to specify the number of characters. The range is 0 to 4294967295.

afterField number

(Optional) (-f) Ignores the first fields on each line of the input file. Use the number argument to specify the number of fields. The range is 0 to 4294967295.

count

(Optional) (-c) Displays the number of times the line appeared in the input file at the beginning of each output line.

nonrepeating

(Optional) (-u) Displays only the nonrepeating lines from the input file (repeating lines are not displayed).

repeating

(Optional) (-d) Displays only the repeating lines from the input file (nonrepeating lines are not displayed).

infile input-file

(Optional) Specifies an input file for processing. The input-file argument specifies the device, directory, and filename of the input file. If no input file is specified, then the standard input (keyboard) is used.

The syntax of the input-file argument is: device :[/ directory-path]/ filename .

The device argument, followed by a colon, indicates the name of the device where the file is located. Use the online help ( ? ) function to display the available storage devices and network protocols.

outfile output-file

(Optional) Specifies an output file. The output-file argument specifies the device, directory, and filename of the output file. If no file is specified, then the standard output (display) is used.

The syntax of the output-file argument is: device :[/ directory-path]/ filename .

The device argument, followed by a colon, indicates the name of the device where the file is located. Use the online help ( ? ) function to display the available storage devices and network protocols.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

If no input file is specified, then the standard input is used.

If no output file is specified, then the standard output is used.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Use the command to display only lines that are repeated in a file, or to display only lines that appear once. This utility compares only adjacent lines, so the file or standard input must be sorted.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is used to display the repeating lines in the output of the show environment command:
RP/0/0/CPU0:router# show environment | utility uniq repeating 
  
host    5V              4500,5500       4250,5750       4000,6000       
fabricq 1.25V           1125,1375       1063,1438       1000,1500       
fabricq 1.25V           1125,1375       1063,1438       1000,1500       
ingress 1.25V           1125,1375       1063,1438       1000,1500       
spa5    1.5V            1500,0          1575,1425       0,0             
host    5V              4500,5500       4250,5750       4000,6000       
fabricq 1.25V           1125,1375       1063,1438       1000,1500       
fabricq 1.25V           1125,1375       1063,1438       1000,1500       
ingress 1.25V           1125,1375       1063,1438       1000,1500       
spa5    1.5V            1500,0          1575,1425       0,0             
  
Related Commands

Command

Description

utility sort

Sorts, merges, or sequence-checks the output displayed from standard input or a file.
utility wc
To count words, lines, or bytes in a file, use the utility wc command in EXEC mode or administration EXEC mode.

utility wc [ [ [WORD] | [bytes] [lines] [words] ] [ file input-file ] | usage ]

Syntax Description

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

bytes

(Optional) (-c) Displays the number of bytes in each input file.

lines

(Optional) (-l) (-œel-?) Displays the number of lines in each input file.

words

(Optional) (-w) Displays the number of words in each input file.

file input-file

(Optional) Specifies the input file. The input-file argument specifies the device, directory, and filename of the input file. If no input file is specified, then the standard input (keyboard) is used.

The syntax of the input-file argument is: device :[/ directory-path]/ filename .

The device argument, followed by a colon, indicates the name of the device where the file is located. Use the online help ( ? ) function to display the available storage devices and network protocols.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

Output is displayed in the order bytes, words, and lines, even if the options are entered in a different order.

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

The following devices were added: disk0a: , disk1a: , and compactflasha: .

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Output is displayed in the following order:

When keywords are entered, the output appears in the order bytes, words, and lines.

When no keyword is entered, the output appears in the order lines, words, and bytes.

When any UNIX equivalent options are entered, the output appears in the order specified by the options. For example, if the command utility wc -w -l -c is entered, the output appears in the order words, lines, and bytes.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is issued to display the number of lines, words, and bytes in the output of the show version command:
RP/0/0/CPU0:router# show version | utility wc       

        221     1160    10820
  
  
The output displays the following:

221 lines

1160 words

10820 bytes

In the following example, the command is entered with the words keyword to display the number of words in the output of the show version command:
RP/0/0/CPU0:router# show version | utility wc words 

       1160
  
  
utility which
To locate a program file, use the utility which command in EXEC mode or administration EXEC mode.

utility which { [ [WORD] | [all] [fullname] [ long [link] ] ] program program-name | usage }

Syntax Description

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

all

(Optional) (-a) Displays all occurrences of the program specified by the program pathname keyword and argument.

fullname

(Optional) (-f) Displays the full pathname of the program file.

long [link]

(Optional) (-l) (“el”) Displays the long format for each program found, and also displays link information if the file is a symlink.

program program-name

Specifies the name of the program file.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

No default behavior or values

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

No modification.

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the command is entered without keywords or arguments to display the location of the perl program:
RP/0/0/CPU0:router# utility which program perl
  
  /pkg/bin/perl  
  
In the following example, the command is entered with the fullname keyword to display the full directory path of the perl program:
RP/0/0/CPU0:router# utility which fullname program perl
  
  /disk0:/c12k-base-3.8.0.1I/sbin/perl  
  
In the following example, the command is entered with the long keyword to display additional details about the perl program file:
RP/0/0/CPU0:router# utility which long program perl         
  
  -rwxrwxrwx  1     0         0        19245 Jul 28 14:31 /pkg/bin/perl  
  
Related Commands

Command

Description

utility find

Locates a file.
utility xargs
To run a program from one or more argument lists, use the utility xargs command in EXEC mode or administration EXEC mode.

utility xargs [ [ WORD | trace ] [ program [program-name] [initial-arguments] ] | usage ]

Syntax Description

WORD

(Optional) UNIX command-line option string. The maximum number of characters is 80.

trace

(Optional) (-t) Prints each program on standard error before executing.

program

(Optional) Specifies the name of the program and initial arguments. If a program name is not specified, then the echo utility is used.

program-name

(Optional) Specifies the name of the program. If a program name is not specified, then the echo utility is used.

initial-arguments

(Optional) Specifies the initial arguments.

usage

(Optional) Displays the UNIX options supported by this command.

Command Default

If no program is specified, then the echo utility is used (the input lines are displayed).

Command Modes

EXEC

Administration EXEC

Command History

Release

Modification

Release 3.4.0

This command was introduced.

Release 3.5.0

No modification.

Release 3.6.0

No modification.

Release 3.7.0

No modification.

Release 3.8.0

No modification.

Release 3.9.0

No modification.

Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. If you suspect user group assignment is preventing you from using a command, contact your AAA administrator for assistance.

Note

Keywords are entered using the displayed syntax, or with UNIX-equivalent syntax. The UNIX-equivalent syntax is displayed in parentheses () in the syntax description. To display the UNIX-equivalent syntax online, enter the usage keyword.

Task ID

Task ID

Operations

universal

execute
Examples

In the following example, the utility xargs command is used to display the egress lines:
RP/0/0/CPU0:router# more disk0:/usr/files | utility xargs program grep EGRESS
  
  disk0:/usr/atm.cfg:service-policy output EGRESS-GigabitEthernet0-0-0-0-101
  disk0:/usr/atm.cfg:service-policy output EGRESS-GigabitEthernet0-0-0-0-102
  disk0:/usr/atm.cfg:service-policy output EGRESS-GigabitEthernet0-0-0-0-103
  disk0:/usr/atm.cfg:service-policy output EGRESS-GigabitEthernet0-0-0-0-104
  disk0:/usr/atm.cfg:service-policy output EGRESS-GigabitEthernet0-0-0-0-105
  disk0:/usr/atm.cfg:service-policy output EGRESS-GigabitEthernet0-0-0-0-106
  disk0:/usr/atm.cfg:service-policy output EGRESS-GigabitEthernet0-0-0-0-107
  disk0:/usr/atm.cfg:service-policy output EGRESS-GigabitEthernet0-0-0-0-108
  disk0:/usr/atm.cfg:service-policy output EGRESS-common
  disk0:/usr/atm.cfg:service-policy output EGRESS-common
  disk0:/usr/atm.cfg:service-policy output EGRESS-common
  disk0:/usr/atm.cfg:service-policy output EGRESS-common
  disk0:/usr/atm.cfg:service-policy output EGRESS-common
  ..... 
  

Support

Utility Commands on Cisco IOS XR Software

Hierarchical Navigation

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Utility Commands on Cisco IOS XR Software

utility bc

Syntax Description

Command Default

Command Modes

Command History

Usage Guidelines

Task ID

Examples

utility cut

Syntax Description

Command Default

Command Modes

Command History

Usage Guidelines

Task ID

Examples

Related Commands

utility date

Syntax Description

Command Default

Command Modes

Command History

Usage Guidelines

Task ID

Examples

Related Commands

utility date set

Syntax Description

Command Default

Command Modes

Command History

Usage Guidelines

Task ID

Examples

Related Commands

utility df

Syntax Description

Command Default

Command Modes

Command History

Usage Guidelines

Task ID

Examples

Related Commands

utility du

Syntax Description

Command Default

Command Modes

Command History

Usage Guidelines

Task ID

Examples

Related Commands

utility egrep

Syntax Description

Command Default

Command Modes

Command History

Usage Guidelines

Task ID

Examples

Related Commands

utility fgrep

Syntax Description

Command Default

Command Modes

Command History

Usage Guidelines

Task ID

Examples

Related Commands

utility find

Syntax Description

Command Default

Command Modes