Account      -  Account file additions, listings, modifications
		Backup       -  Perform incremental or image backups of disks
		CLear        -  Clear backup in progress message
		COmmand      -  Submit/log command procedures for execution
		Decus        -  Make copies of DECUS tapes
		ERrors       -  Check system error log
		INitialize   -  Initialize a virgin magnetic tape 
		INT[rusion]  -  Show & Delete breakin intrusion records
		Message      -  Send a message to users
		MOunt        -  Mount/Unmount a disk 
		Notice       -  Post/Unpost operator login notices