CSPLIT(1)               COMMAND REFERENCE               CSPLIT(1)



NAME
     csplit - context split

SYNOPSIS
     csplit [-c] [-s] [-k] [-f prefix ] filename arg1... [ argn ]

DESCRIPTION
     Csplit reads filename and separates it into n+1 sections,
     defined by the arguments arg1...  argn.  By default the
     sections are placed in xx00 ...  xx n (n may not be greater
     than 99).  These sections get the following pieces of
     filename:

        00: From the start of filename up to (but not including)
            the line referenced by arg1.
        01: From the line referenced by arg1 up to the line
            referenced by arg2.
            .
            .
            .
        n+1:
            From the line referenced by argn to the end of
            filename.

OPTIONS
     -c Print the number of files created instead of the sizes of
        the files.  If the -s option is also given, the -c option
        is turned off.

     -f prefix
        If the -f option is used, the created files are named
        prefix00 ... prefixn.  The default is xx00 ...  xxn.

     -k Csplit normally removes created files if an error occurs.
        If the -k option is present, csplit leaves previously
        created files intact.

     -s Csplit normally prints the character counts for each file
        created.  If the -s option is present, csplit suppresses
        the printing of all character counts.

     The arguments (arg1 ...  argn) to csplit can be a
     combination of the following:

     /rexp/
        A file is to be created for the section from the current
        line up to (but not including) the line containing the
        regular expression rexp.  The current line becomes the
        line containing rexp.  This argument may be followed by
        an optional + or - some number of lines (for example,
        /Page/-5).




Printed 4/6/89                                                  1

CSPLIT(1)               COMMAND REFERENCE               CSPLIT(1)



     %rexp%
        This argument is the same as /rexp/, except that no file
        is created for the section.

     lnno
        A file is to be created from the current line up to, but
        not including, lnno (line number).  The current line
        becomes lnno.

     {num}
        Repeat argument.  This argument may follow any of the
        above arguments.  If it follows a rexp type argument,
        that argument is applied num more times.  If it follows
        lnno, the file will be split every lnno lines (num times)
        from that point.

     Enclose all rexp type arguments that contain blanks or other
     characters meaningful to the Shell in the appropriate
     quotes.  Regular expressions may not contain embedded
     newlines.  Csplit does not affect the original file; it is
     the user's responsibility to remove it.

EXAMPLES
     This example creates four files, cobol100...cobol103:

          csplit -f cobol file  '/procedure division/'  /par5./  /par16./

     After editing the split files, they can be recombined as
     follows:

          cat cobol0[0-3] > file

     Note that this example overwrites the original file.

     This next example would split the file at every 100 lines,
     up to 10,000 lines.  The -k option causes the created files
     to be retained if there are less than 10,000 lines; however,
     an error message would still be printed:

          csplit -k file  100  {99}

     Assuming that prog.c follows the normal C coding convention
     of ending routines with a } (close brace) at the beginning
     of the line, this example will create a file containing each
     separate C routine (up to 21) in prog.c:

          csplit -k prog.c  '%main(%'  '/^}/+1'  {20}

RETURN VALUE
     [NO_ERRS]      Command completed without error.

     [USAGE]        Incorrect command line syntax. Execution



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CSPLIT(1)               COMMAND REFERENCE               CSPLIT(1)



                    terminated.

     [NP_ERR]       An error occurred that was not a system
                    error.  Execution terminated.

     [P_ERR]        A system error occurred. Execution
                    terminated.  See intro(2) for more
                    information on system errors.

SEE ALSO
     ed(1) and sh(1sh).












































Printed 4/6/89                                                  3

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