CSPLIT(1)               NetBSD 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.

     The options are as follows:

           -f prefix   Give created files names beginning with prefix.  The
                       default is ``xx''.

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

           -n number   Use number of decimal digits after the prefix to form
                       the file name.  The default is 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 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
                       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.

     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 there-
     after:

           $ csplit -k - 100 '{19}'

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

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

HISTORY
     A csplit command appeared in PWB UNIX.

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

NetBSD 5.0_STABLE              January 26, 2005              NetBSD 5.0_STABLE
