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<A NAME="PAGENUM-86"><P>Page 86</P></A>
<P>The contents of the output files are determined by the pattern arguments. An error occurs if a pattern argument refers to
a nonexistent line of the input file, such as if no remaining line matches a given regular expression. After all the given
patterns have been matched, any remaining output is copied into one last output file. The types of pattern arguments are
</P>
<TABLE>
<TR><TD>
line
</TD><TD>
Create an output file containing the current line up to (but not including) line
line (a positive integer) of the input file. If followed by a repeat count, also create an output file containing
the next line lines of the input file once for each repeat.
</TD></TR><TR><TD>
/regexp/[offset]
</TD><TD>
Create an output file containing the current line up to (but not including) the next line of
the input file that contains a match for regexp. The optional offset is a
+ or _ followed by a positive integer. If it is given, the input up to the matching line plus or minus offset is put into the
output file, and the line after that begins the next section of input.
</TD></TR><TR><TD>
%regexp%[offset]
</TD><TD>
Like the previous type, except that it does not create an output file, so that section of the input
file is effectively ignored.
</TD></TR><TR><TD>
{repeat-count}
</TD><TD>
Repeat the previous pattern
repeat-count (a positive integer) additional times. An asterisk may
be given in place of the (integer) repeat count, in which case the preceding pattern is repeated as
many times as necessary until the input is exhausted.
</TD></TR></TABLE>
<P>The output filenames consist of a prefix followed by a suffix. By default, the suffix is merely an ascending linear sequence
of two-digit decimal numbers starting with 00 and ranging up to 99; however, this default may be overridden by either the
—digits option or by the —suffix_format option. (See "Options," next.) In any case, concatenating the output files in
sorted order by filename produces the original input file, in order. The default output filename prefix is
xx.
</P>
<P>By default, if csplit encounters an error or receives a hangup, interrupt, quit, or terminate signal, it removes any output
files that it has created so far before it exits.
</P>
<P><B>
OPTIONS
</B></P>
<TABLE>
<TR><TD>
_f, —prefix=prefix
</TD><TD>
Use prefix as the output filename prefix string.
</TD><TR><TR><TD>
_b, —suffix_format=suffix
</TD><TD>
Use suffix as the output filename suffix string. When this option is specified, the suffix
string must include exactly one printf(3) style conversion specification (such as
%d, possibly including format specification flags, a field width, a precision specifications, or all of these kinds
of modifiers). The conversion specification must be suitable for converting a binary
integer argument to readable form. Thus, only d, i,
u, o, x, and X format specifiers are allowed. The entire suffix string is given (with the current output file number) to
sprintf(3) to form the filename suffixes for each of the individual output files in turn. Note that when this option
is used, the —digits option is ignored.
</TD><TR><TR><TD>
_n, —digits=digits
</TD><TD>
Use output filenames containing numbers that are
digits digits long instead of the default 2.
</TD><TR><TR><TD>
_k, —keep-files
</TD><TD>
Do not remove output files when errors are encountered.
</TD><TR><TR><TD>
_z, —elide_empty_files
</TD><TD>
Suppress the generation of
zero-length output files. (In cases where the section delimiters of
the input file are supposed to mark the first lines of each of the sections, the first output file
will generally be a zero-length file unless you use this option.) Note that the output file
sequence numbers will always run consecutively, starting from 0, even in cases where
zero-length output sections are suppressed due to the use of this option.
</TD><TR><TR><TD>
_s, _q, —silent, —quiet
</TD><TD>
Do not print counts of output file sizes.
</TD><TR><TR><TD>
—help
</TD><TD>
Print a usage message and exit with a nonzero status.
</TD><TR><TR><TD>
—version
</TD><TD>
Print version information on standard output, then exit.
</TD></TR>
</TBL>
<P>
GNU Text Utilities
</P>
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