1 02/21/85 stop
 2 
 3 Syntax as a command:  stop
 4 
 5 
 6 Function:  begins the shutdown process.  The stop command also executes
 7 a "word shutdown" command, so that no more users may log in.  The
 8 system automatically executes a "bump * * 3" to bump all users, giving
 9 them a three minute warning.  Users with the nobump privilege are not
10 bumped.  This command can be used in ring 4 only.