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1.1 root 1: .th WTMP V 9/10/73
2: .sh NAME
3: wtmp \*- user login history
4: .sh DESCRIPTION
5: This
6: file records all logins and logouts.
7: Its format is exactly like utmp(V) except that
8: a null user name indicates a logout on the associated
9: typewriter, and the typewriter name `x' indicates
10: that UNIX was rebooted at that point.
11: .s3
12: Wtmp is maintained by login(I) and init(VII).
13: Neither of these programs creates the file,
14: so if it is removed record-keeping is turned off.
15: .s3
16: This file resides in directory /tmp.
17: .sh "SEE ALSO"
18: init(VII), login(I)
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