| acledit | Edits the access control information of a file |
| aclget | Displays the access control information of a file |
| aclput | Sets the access control information of a file |
| chmod | Changes permission modes |
| chown | Changes the user associated with a file |
| lock | Reserves a terminal |
| lsgroup | Displays the attributes of groups |
| xlock | Locks the local X display until a password is entered |
Backup Files and Storage Media