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Merging upstream version 0.8.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
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Daniel Baumann 2025-02-24 05:04:07 +01:00
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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.36.
.TH ZGREP "1" "December 2009" "Zgrep (zutils) 0.8-rc1" "User Commands"
.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.37.1.
.TH ZGREP "1" "November 2010" "Zgrep (zutils) 0.8" "User Commands"
.SH NAME
Zgrep \- search compressed files for a regular expression
.SH SYNOPSIS
.B zgrep
[\fIOPTIONS\fR] [\fIGREP_OPTIONS\fR] \fIPATTERN \fR[\fIFILES\fR]
[\fIoptions\fR] \fI<pattern> \fR[\fIfiles\fR]
.SH DESCRIPTION
Zgrep \- Grep wrapper for compressed files.
.PP
Zgrep is a wrapper script around the grep command that allows
transparent search on any combination of compressed and non\-compressed
files. If any given file is compressed, its uncompressed content is
used. If a given file does not exist, zgrep tries the compressed file
names corresponding to the supported compressors. If no files are
specified, data is read from standard input, decompressed if needed, and
fed to grep. Data read from standard input must be of the same type; all
uncompressed or all compressed with the same compressor.
Zgrep is a front end to the grep program that allows transparent search
on any combination of compressed and non\-compressed files. If any given
file is compressed, its uncompressed content is used. If a given file
does not exist, and its name does not end with one of the known
extensions, zgrep tries the compressed file names corresponding to the
supported compressors. If no files are specified, data is read from
standard input, decompressed if needed, and fed to grep. Data read from
standard input must be of the same type; all uncompressed or all
compressed with the same compressor.
The supported compressors are bzip2, gzip, lzip and xz.
.PP
Zegrep is a shortcut for "zgrep \fB\-E\fR"
Zfgrep is a shortcut for "zgrep \fB\-F\fR"
.PP
GREP_OPTIONS are passed directly to grep.
The exit status from grep is preserved.
Exit status is 0 if match, 1 if no match, 2 if trouble.
.SH OPTIONS
.TP
\fB\-h\fR, \fB\-\-help\fR
\fB\-\-help\fR
display this help and exit
.TP
\fB\-V\fR, \fB\-\-version\fR
output version information and exit
.TP
\fB\-a\fR, \fB\-\-text\fR
treat all files as text
.TP
\fB\-A\fR, \fB\-\-after\-context=\fR<n>
print <n> lines of trailing context
.TP
\fB\-b\fR, \fB\-\-byte\-offset\fR
print the byte offset of each line
.TP
\fB\-B\fR, \fB\-\-before\-context=\fR<n>
print <n> lines of leading context
.TP
\fB\-c\fR, \fB\-\-count\fR
only print a count of matching lines per file
.TP
\fB\-C\fR, \fB\-\-context=\fR<n>
print <n> lines of output context
.TP
\fB\-e\fR, \fB\-\-regexp=\fR<pattern>
use <pattern> as the pattern to match
.TP
\fB\-E\fR, \fB\-\-extended\-regexp\fR
<pattern> is an extended regular expression
.TP
\fB\-f\fR, \fB\-\-file=\fR<file>
obtain patterns from <file>
.TP
\fB\-F\fR, \fB\-\-fixed\-strings\fR
<pattern> is a set of newline\-separated strings
.TP
\fB\-h\fR, \fB\-\-no\-filename\fR
suppress the prefixing filename on output
.TP
\fB\-H\fR, \fB\-\-with\-filename\fR
print the filename for each match
.TP
\fB\-i\fR, \fB\-\-ignore\-case\fR
ignore case distinctions
.TP
\fB\-I\fR
ignore binary files
.TP
\fB\-l\fR, \fB\-\-files\-with\-matches\fR
only print names of files containing matches
.TP
\fB\-L\fR, \fB\-\-files\-without\-match\fR
only print names of files containing no matches
.TP
\fB\-m\fR, \fB\-\-max\-count=\fR<n>
stop after <n> matches
.TP
\fB\-n\fR, \fB\-\-line\-number\fR
print the line number of each line
.TP
\fB\-o\fR, \fB\-\-only\-matching\fR
show only the part of a line matching <pattern>
.TP
\fB\-q\fR, \fB\-\-quiet\fR
suppress all messages
.TP
\fB\-r\fR, \fB\-\-recursive\fR
operate recursively on directories
.TP
\fB\-s\fR, \fB\-\-no\-messages\fR
suppress error messages
.TP
\fB\-v\fR, \fB\-\-invert\-match\fR
select non\-matching lines
.TP
\fB\-\-verbose\fR
verbose mode (show error messages)
.TP
\fB\-w\fR, \fB\-\-word\-regexp\fR
match only whole words
.TP
\fB\-x\fR, \fB\-\-line\-regexp\fR
match only whole lines
.SH "REPORTING BUGS"
Report bugs to zutils\-bug@nongnu.org
.br
Zutils home page: http://www.nongnu.org/zutils/zutils.html
.SH COPYRIGHT
Copyright \(co 2009 Antonio Diaz Diaz.
This script is free software: you have unlimited permission
to copy, distribute and modify it.
Copyright \(co 2010 Antonio Diaz Diaz.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
.br
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.