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NetBSD 6.1.5 - man page for csplit (netbsd section 1)

CSPLIT(1)			   BSD 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 cre-
     ated, or a HUP, INT, or TERM signal is received, 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 pre-
		       fix, instead of 2.

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

     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 expression.  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 including)
		       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 number 1 for historic rea-
		       sons.

     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.

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

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

EXAMPLES
     Split the mdoc(7) file foo.1 into one file for each section (up to 20):

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

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

	   $ csplit -k - 100 '{19}'

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

STANDARDS
     The csplit utility conforms to IEEE Std 1003.1-2004 (``POSIX.1'').

HISTORY
     A csplit command appeared in PWB UNIX.

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

BSD					 January 4, 2009				      BSD


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