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- .th WTMP V 2/22/74
- .sh NAME
- wtmp \*- user login history
- .sh 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.
- Furthermore, the typewriter name `~' indicates that the
- system was rebooted at the indicated time;
- the adjacent pair of entries with typewriter names
- `|' and `}' indicate the system-maintained time
- just before and just after a
- .it date
- command has changed the system's idea of the time.
- .s3
- .it Wtmp
- is maintained by login (I) and init (VIII).
- Neither of these programs creates the file,
- so if it is removed record-keeping is turned off.
- It is summarized by ac (VIII).
- .sh FILES
- /usr/adm/wtmp
- .sh "SEE ALSO"
- utmp (V), login (I), init (VIII), ac (VIII), who (I)
-