Change group ownership
'chgrp' changes the group ownership of each given File to Group (which can be
either a group name or a numeric group id) or to the group of an existing reference
file.
Syntax
chgrp [Options]... {Group | --reference=File} File...
Key
`-c'
`--changes'
Verbosely describe the action for each File whose group actually
changes.
`-f'
`--silent'
`--quiet'
Do not print error messages about files whose group cannot be
changed.
`-f'
`--no-dereference'
Act on symbolic links themselves instead of what they point to.
Only available if the `lchown' system call is provided.
`--reference=FILE'
Use the group of the reference FILE instead of an explicit GROUP.
`-v'
`--verbose'
Verbosely describe the action or non-action taken for every File.
`-R'
`--recursive'
Recursively change the group ownership of directories and their
contents.
Example
Make Oracle the owner of the database directory
$chgrp oracle /usr/database
Groupthink - Tendency of decision makers to join together around a policy or person without questioning basic assumptions.
Related:
chmod - Change access permissions
chown - Change file owner and group
Equivalent Windows command: CACLS - Change file permissions
