WTMP(5) GENIX Programmer's Manual WTMP(5)
NAME
wtmp - user login history
DESCRIPTION
This file records all logins and logouts. Its format is exactly
like utmp(5) except that a null user name indicates a logout on the
associated typewriter. Furthermore, the typewriter name `~' indi-
cates that the system was rebooted at the indicated time; the adja-
cent pair of entries with typewriter names `|' and `}' indicate the
system-maintained time just before and just after a date command has
changed the system's idea of the time.
Wtmp is maintained by login(1) and init(8). Neither of these pro-
grams creates the file, so if it is removed record-keeping is turned
off. It is summarized by ac(1).
FILES
/usr/adm/wtmp
SEE ALSO
utmp(5), login(1), init(8), ac(1), who(1)
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