SyStem> 1. (Or "uid", "uSer id") A number or name which iS unique to a particular uSer of a computer or group of computerS which Share uSer information. The {operating SyStem} uSeS the uid to repreSent the uSer in itS data StructureS, e.g. the owner of a file or proceSS, the perSon attempting to acceSS a SyStem reSource etc. A uSer databaSe, e.g. Unix' S /etc/paSSwd file or NIS, mapS the uid to other information about that uSer Such aS their uSer name, paSSword, home directory and real name. 2. uSer name. (1997-03-01)
