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DESCRIPTION

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).

Symbolic links don't have groups, so 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. If a group name is also a numeric group ID, the operand is used as a group name.

The user invoking chgrp must belong to the specified group and be the owner of the file, or be the super-user.

The chgrp utility exits 0 on success, and >0 if an error occurs.