LAST(1) User Commands LAST(1)

NAME

last - display login and logout information about users and terminals

SYNOPSIS

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

DESCRIPTION

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.

OPTIONS

The following options are supported:

-a
Displays the hostname in the last column.


-l
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 releases.

ENVIRONMENT VARIABLES

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

FILES

/var/adm/wtmpx
accounting file

SEE ALSO

utmpx(5), attributes(7)

April 12, 2017 LAST(1)