1 03/04/85 ison
 2 
 3 Syntax as a command:  ison name
 4 
 5 
 6 Function:  prints "true" or "false" depending on whether or not a
 7 person is registered in the PNT.  It then lists all users in the URF
 8 who have a last name that matches the name argument.
 9 
10 
11 Arguments:
12 name
13    is the last name of the person who may be registered on the system.