.\" Copyright (c) 1998 Dag-Erling Coïdan Smørgrav
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer
.\"    in this position and unchanged.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. The name of the author may not be used to endorse or promote products
.\"    derived from this software without specific prior written permission
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" $FreeBSD$
.\"
.Dd May 26, 2005
.Dt CHKGRP 8
.Os
.Sh NAME
.Nm chkgrp
.Nd check the syntax of the group file
.Sh SYNOPSIS
.Nm
.Op Fl q
.Op Ar groupfile
.Sh DESCRIPTION
The
.Nm
utility
scans the given file or, failing that, the system-wide group file for
errors.
Specifically, it checks that every non-blank, non-comment
entry is composed of four colon-separated fields, that none of them
contains whitespace, and that the third field (the group ID) is
numeric.
It will also check for invalid characters in the group names
and group members.
The following options are available:
.Bl -tag -width indent
.It Fl q
This option disables printing of text when the group format
is correct.
.El
.Sh FILES
.Bl -tag -width /etc/group -compact
.It Pa /etc/group
group database file
.El
.Sh EXIT STATUS
The
.Nm
utility returns
.Dv EX_DATAERR
if errors were found in the group file,
and
.Dv EX_OK
otherwise.
.Sh DIAGNOSTICS
For each error found,
.Nm
will print an error message containing the name of the file being
scanned and the line number on which the error was found.
.Sh SEE ALSO
.Xr getgrent 3 ,
.Xr group 5
.Sh HISTORY
The
.Nm
utility appeared in
.Fx 3.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
utility and this manual page were written by
.An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org .
Further functionality was added by
.An Liam J. Foy Aq liamfoy@dragonflybsd.org .
.Sh BUGS
Should check the range of the group ID.