last(1)last(1)Namelast - indicate last logins of users and teletypes
Syntaxlast [-N] [name...] [tty...]
The command looks back in the file, which records all logins and
logouts, for information about a user, a teletype or any group of users
and teletypes. Arguments specify names of users or teletypes of inter‐
est. Names of teletypes can be given fully or abbreviated. For exam‐
ple `last 0' is the same as `last tty0'.
If multiple arguments are given, the information that applies to any of
the arguments is printed. For example, `last root console' lists all
of "root's" sessions as well as all sessions on the console terminal.
The command prints the sessions of the specified users and teletypes,
most recent first, indicating the times at which the session began, the
duration of the session, and the teletype on which the session took
place. If the session is ongoing or was cut short by a reboot, indi‐
cates that this is so.
The pseudo-user reboot logs in at reboots of the system. Therefore,
the following example gives an indication of mean time between reboot:
The command with no arguments prints a record of all logins and
logouts, in reverse order.
If is interrupted, it indicates how far the search has progressed in If
interrupted with a quit signal (generated by a <CTRL/E>) indicates how
far the search has progressed so far, and the search continues.
Options-N Limits the number of output lines to the specified number.
login data base
records that shutdowns occurred and why
See Alsowtmp(5), ac(8), lastcomm(1)last(1)