LAST(1) BSD General Commands Manual LAST(1)NAMElast — indicate last logins of users and ttys
SYNOPSISlast [-n] [-T] [-f file] [-h host] [-t tty] [-L linesize] [-N namesize]
[-H hostsize] [user ...]
DESCRIPTIONlast will list the sessions of specified users, ttys, and hosts, in
reverse time order. Each line of output contains the user name, the tty
from which the session was conducted, any hostname, the start and stop
times for the session, and the duration of the session. If the session
is still continuing or was cut short by a crash or shutdown, last will so
indicate.
-f file last reads the file file instead of the default,
/var/log/wtmpx or /var/log/wtmp. If the file ends with `x',
it is treated as a utmpx(5) format file, else it is treated
as a utmp(5) format file.
-n Limits the report to n lines.
-t tty Specify the tty. Tty names may be given fully or abbrevi‐
ated, for example, “last -t 03” is equivalent to “last -t
tty03”.
-h host Host names may be names or internet numbers.
-T Display better time information, including the year and sec‐
onds.
-L linesize
Use the provided linesize as the width to format the tty
field.
-N namesize
Use the provided namesize as the width to format the login
name field.
-H hostsize
Use the provided hostsize as the width to format the host
name field.
If multiple arguments are given, the information which applies to any of
the arguments is printed, e.g., “last root -t console” would list all of
“root's” sessions as well as all sessions on the console terminal. If no
users, hostnames or terminals are specified, last prints a record of all
logins and logouts.
The pseudo-user reboot logs in at reboots of the system, thus “last
reboot” will give an indication of mean time between reboot.
If last is interrupted, it indicates to what date the search has pro‐
gressed. If interrupted with a quit signal last indicates how far the
search has progressed and then continues.
FILES
/var/log/wtmpx login data base
/var/log/wtmp login data base
SEE ALSOlastcomm(1), utmpx(5), utmp(5), ac(8)HISTORYlast appeared in 3.0BSD.
BSD June 6, 1993 BSD