csplit(1) DG/UX 4.30 csplit(1)
NAME
csplit - context split
SYNOPSIS
csplit [-s] [-k] [-f prefix] file arg1 [... argn]
DESCRIPTION
Csplit reads file and separates it into n+1 sections,
defined by the arguments arg1... argn. By default the
sections are placed in files labeled 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+1: From the line referenced by argn to the end of
file.
If the file argument is a - then standard input is used.
Options are:
-s Suppresses the printing of all character
counts. Csplit normally prints the
character counts for each file created.
-k Leaves previously created files intact.
Csplit normally removes created files if an
error occurs.
-f prefix The created files are named prefix00 ...
prefixn. The default is xx00 ... xxn.
The arguments (arg1 ... argn) to csplit can be a
combination of the following:
/rexp/ Create a file 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 (e.g., /Page/-5).
%rexp% The same as /rexp/, but no file is created for
the section.
linenum Create a file from the current line up to (but
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csplit(1) DG/UX 4.30 csplit(1)
not including) linenum. The current line
becomes linenum.
{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 linenum, the file
will be split every linenum 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.
EXAMPLES
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 would split the file at every 100 lines, up to
10,000 lines. The -k option retains the created files if
there are less than 10,000 lines; however, an error message
would still be printed.
csplit -k prog.c '%main(%' '/^}/+1' {20}
Assuming that prog.c follows the normal C coding convention
of ending routines with a } at the beginning of the line,
this example will create a file containing each separate C
routine (up to 21) in prog.c.
SEE ALSO
ed(1), sh(1).
regexp(5) in the Programmer's Reference for the DG/UX System
DIAGNOSTICS
Self explanatory except for:
arg - out of range
This means that the given argument did not reference a line
between the current position and the end of the file.
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