WTMP (V)                     3/15/72                     WTMP (V)

NAME            /tmp/wtmp  -- user login history

DESCRIPTION     This file records all logins and logouts.  Its

                format is exactly like utmp(V) except that a null

                user name indicates a logout on the associated

                typewriter, and the typewriter name 'x' indicates

                that UNIX was rebooted at that point.

                Wtmp is maintained by login(I) and init(VII).

                Neither of these programs creates the file, so if

                it is removed record-keeping is turned off.

                This file resides in directory /tmp.

SEE ALSO        init(VII), login(I), acct(VIII), swtmp(VIII)