last(1) User Commands last(1)
last - display login and logout information about users and terminals
last [-a] [-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 ter-
minals 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 ses-
sion 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
gives an approximate record of when the operating system instance was
shutdown and when it rebooted. This can be used to calculate the avail-
ability of the operating system over time.
last with no arguments displays a record of all logins and logouts, in
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:
-a Displays the hostname in the last col-
-f filename Uses filename as the name of the
accounting file instead of
-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.
Date and time format is based on locale specified by the LC_ALL,
LC_TIME, or LANG environments, in that order of priority.
/var/adm/wtmpx accounting file
See attributes(5) for descriptions of the following attributes:
tab() allbox; cw(2.750000i)| cw(2.750000i) lw(2.750000i)|
lw(2.750000i). ATTRIBUTE TYPEATTRIBUTE VALUE AvailabilitySUNWesu
SunOS 5.10 24 Jul 2004 last(1)