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cut(1)									cut(1)

NAME
       cut - Displays specified parts from each line of a file

SYNOPSIS
       cut -b list [-n] [file...]

       cut -c list [file...]

       cut -f list [-d delim] [-s] [file...]

STANDARDS
       Interfaces  documented on this reference page conform to industry stan‐
       dards as follows:

       cut:  XCU5.0

       Refer to the standards(5) reference page	 for  more  information	 about
       industry standards and associated tags.

OPTIONS
       Cuts  based  on	a list of bytes.  Each selected byte is output, unless
       you also specify the -n option.	For example, if you specify  -b	 1-72,
       the cut command writes out the first 72 bytes in each line of the file.
       Cuts based on a list of characters.  It is not an error if you  specify
       a  character  not  in  the  input.  Uses the specified character as the
       field delimiter (separator) when you specify the -f option.   You  must
       quote  characters  with special meaning to the shell, such as the space
       character.  Any character can be used  as  delim.   The	default	 field
       delimiter is a tab character.  Specifies a list of fields assumed to be
       separated in the file by a field delimiter character, specified by  the
       -d option or the tab character by default.  For example, if you specify
       -f 1,7, the cut command writes out only the first and seventh fields of
       each  line.   If	 a  line contains no field delimiters, the cut command
       passes them through intact (useful for table subheadings),  unless  you
       specify the -s option.  Does not split characters.  When specified with
       the -b option, each element in list of the form low-high	 (hyphen-sepa‐
       rated  numbers)	is modified as follows: If the byte selected by low is
       not the first byte of a character, low is  decremented  to  select  the
       first  byte  of	the character originally selected by low.  If the byte
       selected by high is not the last byte of a character,  high  is	decre‐
       mented  to select the last byte of the character prior to the character
       originally selected by high, or zero (0) if there is no	prior  charac‐
       ter.   If the resulting range element has high equal to zero (0) or low
       greater than high, the list element is dropped from list for that input
       line without causing an error.

	      Each  element  in list of the form low- is treated as previously
	      described with high set to the number of bytes  in  the  current
	      line,  not  including  the  terminating newline character.  Each
	      element in list of the  form  -high  is  treated	as  previously
	      described	 with  low set to 1.  Each element in list of the form
	      number (a single number) is treated as previously described with
	      low set to number and high set to number.	 Suppresses lines that
	      do not contain  delimiter	 characters  (use  only	 with  the  -f
	      option).	 Unless	 you include this option, lines with no delim‐
	      iters are passed through.

OPERANDS
       The path name of the file to be examined.

	      If you do not specify a file or you specify a  hyphen  (-),  the
	      cut command reads standard input.

DESCRIPTION
       The cut command locates the specified fields in each line of the speci‐
       fied file and writes the characters in those fields to standard output.

       You must specify the -b option (to select bytes),  the  -c  option  (to
       select characters) or the -f option (to select fields).	The list argu‐
       ment (see the -b, -c, and -f options)  must  be	a  space-separated  or
       comma-separated	list of positive numbers and ranges.  Ranges can be in
       three forms: Two positive numbers separated by a hyphen (-), as in  the
       form low-high, which represents all fields from the first number to the
       second number.  A positive number preceded by a hyphen (-), as  in  the
       form  -high,  which  represents	all fields from field number 1 to that
       number.	A positive number followed by a hyphen (-),  as	 in  the  form
       low-, which represents that number to the last field, inclusive.

       The elements in list can be repeated, can overlap, and can be specified
       in any order.

       Some sample list specifications are as follows: First, fourth, and sev‐
       enth  bytes or fields.  First through third and eighth bytes or fields.
       First through fifth and tenth bytes  or	fields.	  Third	 through  last
       bytes or fields.

       The  fields  specified by list can be a fixed number of byte positions,
       or the length can vary from line to line and be	marked	with  a	 field
       delimiter character, such as a tab character.

       [Tru64 UNIX]  You can also use the grep command to make horizontal cuts
       through a file and the paste command to put the	files  back  together.
       To  change  the	order of columns in a file, use the cut and paste com‐
       mands.

EXIT STATUS
       The following exit values  are  returned:  Successful  completion.   An
       error occurred.

EXAMPLES
       To  display several fields of each line of a file, enter: cut -f 1,5 -d
       : /etc/passwd

       This displays the login name and full user name fields  of  the	system
       password file.  These are the first and fifth fields (-f 1,5) separated
       by colons (-d :).

       So, if the /etc/passwd file looks like this:

       su:UHuj9Pgdvz0J":0:0:User    with    special	privileges:/:	  dae‐
       mon:*:1:1::/etc:	       bin:*:2:2::/usr/bin:	  sys:*:3:3::/usr/src:
       adm:*:4:4:System	   Administrator:/usr/adm:     pierre:*:200:200:Pierre
       Harper:/u/pierre: joan:*:202:200:Joan Brown:/u/joan:

       Then, cut -f 1,5 -d : /etc/passwd produces this output:

       su:User	with  special privileges daemon: bin: sys: adm:System Adminis‐
       trator pierre:Pierre Harper joan:Joan Brown

ENVIRONMENT VARIABLES
       The following environment variables affect the execution of  cut:  Pro‐
       vides  a	 default value for the internationalization variables that are
       unset or null. If LANG is unset or null, the corresponding  value  from
       the  default  locale is used.  If any of the internationalization vari‐
       ables contain an invalid setting, the utility behaves as if none of the
       variables  had been defined.  If set to a non-empty string value, over‐
       rides the values	 of  all  the  other  internationalization  variables.
       Determines  the	locale for the interpretation of sequences of bytes of
       text data as characters (for example, single-byte as opposed to	multi‐
       byte  characters	 in arguments and input files).	 Determines the locale
       for the format and contents of diagnostic messages written to  standard
       error.	Determines the location of message catalogues for the process‐
       ing of LC_MESSAGES.

SEE ALSO
       Commands:  grep(1), fold(1), join(1), paste(1)

       Standards:  standards(5)

									cut(1)
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