chkgrp
—
check the syntax of the group file
The chkgrp
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:
-q
- This option disables printing of text when the group format is
correct.
- /etc/group
- group database file
The chkgrp
utility returns
EX_DATAERR
if errors were found in the group file, and
EX_OK
otherwise.
For each error found, chkgrp
will print an error message
containing the name of the file being scanned and the line number on which the
error was found.
The chkgrp
utility appeared in FreeBSD
3.0.
Should check the range of the group ID.