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.\" ========================================================================
.\"
.IX Title "DGREP 1"
.TH DGREP 1 "2022-09-10" "perl v5.34.0" "Debian-goodies documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
dgrep, degrep, dfgrep, dzgrep \-\- grep through files belonging to an installed Debian package
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
\&\fBdgrep\fR [\fImost grep options\fR] \fIpattern\fR \fIpackage\fR...
.PP
\&\fBdgrep\fR \fB\-\-help\fR
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBdgrep\fR invokes \fBgrep\fR\|(1) on each file in one or more installed Debian
packages.
.PP
It passes the \fIpackage\fR argument(s) to \fBdglob\fR\|(1) to retrieve a list of files
in those packages. It uses dglob's substring pattern matching for the package
names.
.PP
If \fBdgrep\fR is invoked as \fBdegrep\fR, \fBdfgrep\fR or \fBdzgrep\fR, etc. then
\&\fBgrep\fR\|(1) with option \f(CW\*(C`\-E\*(C'\fR or \f(CW\*(C`\-F\*(C'\fR respectively the command
\&\fBzgrep\fR\|(1) is used instead of \fBgrep\fR\|(1).
.SH "OPTIONS"
.IX Header "OPTIONS"
\&\fBdgrep\fR supports most of \fBgrep\fR\|(1)'s options. Please refer to your
\&\fBgrep\fR\|(1) documentation (i.e. the manpage or the texinfo manual) for
a complete listing. Only a few options are excluded because they do not
conform with the intended behaviour, see the list below.
.SS "Options of grep that are not supported by dgrep"
.IX Subsection "Options of grep that are not supported by dgrep"
.IP "\fB\-r\fR, \fB\-\-recursive\fR, \fB\-d\fR \fIrecurse\fR, \fB\-\-directories\fR=\fIrecurse\fR" 4
.IX Item "-r, --recursive, -d recurse, --directories=recurse"
.PD 0
.IP "\fB\-d\fR \fIread\fR, \fB\-\-directories\fR=\fIread\fR" 4
.IX Item "-d read, --directories=read"
.PD
\&\fBdgrep\fR searches only in the \*(L"normal\*(R" files of a package. It skips all
directories and symlinks. Therefore the options of
grep that are specific to directories are not supported.
.SH "AUTHOR"
.IX Header "AUTHOR"
Matt Zimmerman <mdz@debian.org>
.PP
This manpage was written by Frank Lichtenheld <frank@lichtenheld.de>.
.SH "COPYRIGHT AND LICENCE"
.IX Header "COPYRIGHT AND LICENCE"
Copyright (C) 2001 Matt Zimmerman <mdz@debian.org>.
.PP
This program is free software; you can redistribute it and/or modify
it under the terms of the \s-1GNU\s0 General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
.PP
On Debian systems, a copy of the \s-1GNU\s0 General Public License version 2
can be found in \fI/usr/share/common\-licenses/GPL\-2\fR.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBgrep\fR\|(1), \fBzgrep\fR\|(1), \fBdglob\fR\|(1), \fBregex\fR\|(7), \fBdpkg\fR\|(8)