csplit(1) csplit(1)
csplit - context split
csplit [-s] [-k] [-f prefix] [-n number] file arg1 [... argn]
csplit reads file and separates it into n+1 sections, defined by the
arguments arg1...argn. By default the sections are placed in xx00...xxn
(n may not be greater than 99). These sections get the following pieces
of file:
00: From the start of file 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: From the line referenced by argn to the end of file.
If the file argument is a -, then standard input is used.
csplit processes supplementary code set characters, and recognizes
supplementary code set characters in the prefix given to the -f option
(see below) according to the locale specified in the LC_CTYPE environment
variable (see LANG on environ(5)). In regular expressions, pattern
searches are performed on characters, not bytes, as described on ed(1).
The options to csplit are:
-s csplit normally prints the number of bytes in each file
created. If the -s option is present, csplit suppresses the
printing of all byte counts.
-k csplit normally removes created files if an error occurs. If
the -k option is present, csplit leaves previously created
files intact.
-f prefix If the -f option is used, the created files are named
prefix<b>00...prefixn. The default is xx00...xxn.
Supplementary code set characters may be used in prefix.
-n number Use number decimal digits to form filenames for the file
pieces. The default is 2.
The arguments (arg1...argn) to csplit can be a combination of the
following:
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csplit(1) csplit(1)
/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 line containing rexp becomes the
current line. This argument may be followed by an optional +
or - some number of lines (for example, /Page/-5). See ed(1)
for a description of how to specify a regular expression.
%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. lnno becomes the current line.
{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 new-lines. csplit does not affect the original
file; it is the user's responsibility to remove it if it is no longer
wanted.
csplit -f cobol file '/procedure division/' /par5./ /par16./
This example creates four files, cobol00...cobol03. After editing the
``split'' files, they can be recombined as follows:
cat cobol0[0-3] > file
Note that this example overwrites the original file.
csplit -k file 100 {99}
This example splits 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 prog.c '%main(%' '/^}/+1' {20}
If prog.c follows the normal C coding convention (the last line of a
routine consists only of a } in the first character position), this
example creates a file for each separate C routine (up to 21) in prog.c.
/usr/lib/locale/locale<b>/LC_MESSAGES/uxdfm
language-specific message file (See LANG on environ(5).)
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csplit(1) csplit(1)
ed(1), sh(1), regexp(5).
Self-explanatory except for:
arg - out of range
which means that the given argument did not reference a line between the
current position and the end of the file.
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