07-04-2011
Can't chgrp, chown on Linux
I have a problem on Linux wherein it doesn't allow me to use the chown and chgrp even if I am the owner of the file. Is this one of the Linux limitations?
BTW, I can use chmod.
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CHGRP(1) BSD General Commands Manual CHGRP(1)
NAME
chgrp -- change group
SYNOPSIS
chgrp [-R [-H | -L | -P]] [-fhv] group file ...
DESCRIPTION
The chgrp utility sets the group ID of the file named by each file operand to the group ID specified by the group operand.
Options:
-H If the -R option is specified, symbolic links on the command line are followed. (Symbolic links encountered in the tree traversal
are not followed.)
-L If the -R option is specified, all symbolic links are followed.
-P If the -R option is specified, no symbolic links are followed.
-R Change the group ID for the file hierarchies rooted in the files instead of just the files themselves.
-f The force option ignores errors, except for usage errors and doesn't query about strange modes (unless the user does not have proper
permissions).
-h If file is a symbolic link, the group of the link is changed.
-v Cause chgrp to be verbose, showing files as they are processed.
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 ``#'' charac-
ter 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.
FILES
/etc/group Group ID file
SEE ALSO
chown(2), lchown(2), fts(3), group(5), passwd(5), symlink(7), chown(8)
STANDARDS
The chgrp utility is expected to be POSIX 1003.2 compatible.
The -v option and the use of ``#'' to force a numeric group ID are extensions to IEEE Std 1003.2 (``POSIX.2'').
BSD
September 25, 2003 BSD