Wtmp

Wtmp

The /var/log/wtmp is a file on Unix-like systems that keeps track of all logins and logouts to the system. It is defined in the Filesystem Hierarchy Standard 2.3.

Format

The wtmp file records all logins and logouts. Its format is exactly like utmp except that a null user name indicates a logout on the associated terminal. Furthermore, the terminal name ~ with user name shutdown or reboot indicates a system shutdown or reboot and the pair of terminal names / logs the old/new system time when date changes it.

External links

* [http://www.freebsd.org/cgi/man.cgi?query=last&apropos=0&sektion=0&manpath=FreeBSD+7.0-RELEASE&format=html FreeBSD last Man Page]
* [http://www.freebsd.org/cgi/man.cgi?query=wtmp&apropos=0&sektion=0&manpath=FreeBSD+7.0-RELEASE&format=html FreeBSD wtmp Man Page]
* [http://www.linuxmanpages.com/man1/last.1.php Linux last Man Page]
* [http://www.linuxmanpages.com/man5/wtmp.5.php Linux wtmp Man Page]
* [http://docs.sun.com/app/docs/doc/819-2239/last-1?l=en&a=view&q=last Solaris last Man Page]
* [http://docs.sun.com/app/docs/doc/802-5747-04/6i9g1bpuc?l=en&a=view&q=wtmp Solaris wtmp Man Page]

See also

* utmp

:unix-stub


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