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csplit - split a file into sections determined by context lines


csplit [OPTION]... FILE PATTERN...


Output pieces of FILE separated by PATTERN(s) to files ‘xx00’, ‘xx01’, ..., and output byte counts of each piece to standard output.

Mandatory arguments to long options are mandatory for short options too.

-b, --suffix-format=FORMAT use sprintf FORMAT instead of %02d

-f, --prefix=PREFIX
use PREFIX instead of ‘xx’

-k, --keep-files
do not remove output files on errors

-n, --digits=DIGITS
use specified number of digits instead of 2

-s, --quiet, --silent
do not print counts of output file sizes

-z, --elide-empty-files
remove empty output files

--help display this help and exit

output version information and exit

Read standard input if FILE is -. Each PATTERN may be:

copy up to but not including specified line number

copy up to but not including a matching line

skip to, but not including a matching line

repeat the previous pattern specified number of times

repeat the previous pattern as many times as possible

A line OFFSET is a required ‘+’ or ‘-’ followed by a positive integer.


Written by Stuart Kemp and David MacKenzie.

Reporting Bugs

Report bugs to <>.


Copyright (C) 2006 Free Software Foundation, Inc. This is free software. You may redistribute copies of it under the terms of the GNU General Public License <>. There is NO WARRANTY, to the extent permitted by law.

See Also

The full documentation for csplit is maintained as a Texinfo manual. If the info and csplit programs are properly installed at your site, the command

info csplit

should give you access to the complete manual.

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