chgrp [group name] [file/directory name]
- Where [group name]] is the group you want to change the ownership to, followed by [file/directory name].
- Recursively change group owner of files/directory
chgrp family /usr/pictures chgrp root /root
- chown- Changes user/group ownership of a file
- chmod - Changes the user/group permissions of a file/directory
- ls - Lists files
- touch - update timestamps