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CSPLIT(1)		     General Commands Manual		       CSPLIT(1)

NAME
     csplit -- split files based on context

SYNOPSIS
     csplit [-ks] [-f prefix] [-n number] file args ...

DESCRIPTION
     The  csplit  utility  splits  file into pieces using the patterns args.  If
     file is a dash (`-'), csplit reads from standard input.

     Files are created with a prefix of "xx" and two decimal digits.   The  size
     of  each  file is written to standard output as it is created.  If an error
     occurs whilst files are being created, or a HUP, INT, or TERM signal is re-
     ceived, all files previously written are removed.

     The options are as follows:

     -f prefix
	     Create file names beginning with prefix, instead of "xx".

     -k      Do not remove previously created files if an error occurs or a HUP,
	     INT, or TERM signal is received.

     -n number
	     Create file names beginning with number of decimal digits after the
	     prefix, instead of 2.

     -s      Do not write the size of each output file to standard output as  it
	     is created.

     The args operands may be a combination of the following patterns:

     /regexp/[[+|-]offset]
	     Create  a	file  containing the input from the current line to (but
	     not including) the next line matching the given basic  regular  ex-
	     pression.	 An  optional  offset  from the line that matched may be
	     specified.

     %regexp%[[+|-]offset]
	     Same as above but a file is not created for the output.

     line_no
	     Create containing the input from the current line to (but	not  in-
	     cluding) the specified line number.

     {num}   Repeat  the  previous pattern the specified number of times.  If it
	     follows a line number pattern, a new file will be created for  each
	     line_no  lines, num times.  The first line of the file is line num-
	     ber 1 for historic reasons.

     After all the patterns have been processed, the remaining	input  data  (if
     there is any) will be written to a new file.

     Requesting  to  split  at a line before the current line number or past the
     end of the file will result in an error.

ENVIRONMENT
     The LANG, LC_ALL, LC_COLLATE and LC_CTYPE environment variables affect  the
     execution of csplit as described in environ(7).

EXIT STATUS
     The csplit utility exits 0 on success, and >0 if an error occurs.

EXAMPLES
     Split  the mdoc(7) file foo.1 into one file for each section (up to 21 plus
     one for the rest, if any):

	   csplit -k foo.1 '%^\.Sh%' '/^\.Sh/' '{20}'

     Split standard input after the first 99 lines and every  100  lines  there-
     after:

	   csplit -k - 100 '{19}'

SEE ALSO
     sed(1), split(1), re_format(7)

STANDARDS
     The csplit utility conforms to IEEE Std 1003.1-2001 ("POSIX.1").

HISTORY
     A csplit command appeared in PWB UNIX.

BUGS
     Input lines are limited to LINE_MAX (2048) bytes in length.

FreeBSD 15.1			February 6, 2014		       CSPLIT(1)
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