CHGRP(1) | General Commands Manual | CHGRP(1) |
chgrp | [-R [-H | -L | -P]] [-fhv] group file ... |
Options:
If -h is not given, unless the -H or -L option is set, chgrp on a symbolic link always succeeds and has no effect. The -H, -L and -P options are ignored unless the -R option is specified. In addition, these options override each other and the command's actions are determined by the last one specified.
The group operand can be either a group name from the group database, or a numeric group ID. Since it is valid to have a group name that is numeric (and doesn't have the numeric ID that matches its name) the name lookup is always done first. Preceding the ID with a ``#'' character will force it to be taken as a number.
The user invoking chgrp must belong to the specified group and be the owner of the file, or be the super-user.
Unless invoked by the super-user, chgrp clears the set-user-id and set-group-id bits on a file to prevent accidental or mischievous creation of set-user-id or set-group-id programs.
The chgrp utility exits 0 on success, and >0 if an error occurs.
The -v option and the use of ``#'' to force a numeric group ID are extensions to IEEE Std 1003.2 (“POSIX.2”).
September 25, 2003 | NetBSD 6.1 |