LAST(1) User Commands LAST(1)


last - display login and logout information about users and terminals


last [-a] [-l] [-n number | -number] [-f filename]
[name | tty]...


The last command looks in the /var/adm/wtmpx file, which records all
logins and logouts, for information about a user, a terminal, or any
group of users and terminals. Arguments specify names of users or
terminals of interest. If multiple arguments are given, the information
applicable 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. last displays the sessions of the specified users and
terminals, most recent first, indicating the times at which the session
began, the duration of the session, and the terminal on which the session
took place. last also indicates whether the session is continuing or was
cut short by a reboot.

The pseudo-user reboot logs in when the system is shutdown and when it
reboots. Thus,

last reboot

gives an approximate record of when the operating system instance was
shutdown and when it rebooted. This can be used to calculate the
availability of the operating system over time.

last with no arguments displays a record of all logins and logouts, in
reverse order.

If last is interrupted, it indicates how far the search has progressed in
/var/adm/wtmpx. If interrupted with a quit signal (generated by a
CTRL-\), last indicates how far the search has progressed, and then
continues the search.


The following options are supported:

Displays the hostname in the last column.

Displays timestamps with seconds and years.

-f filename
Uses filename as the name of the accounting file
instead of /var/adm/wtmpx.

-n number|-number
Limits the number of entries displayed to that
specified by number. These options are
identical; the -number option is provided as a
transition tool only and is removed in future


Date and time format is based on locale specified by the LC_ALL, LC_TIME,
or LANG environments, in that order of priority.


accounting file


utmpx(5), attributes(7)

April 12, 2017 LAST(1)