solaris - last (1)

     last - display login and logout information about users  and
     terminals

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

     SUNWesu

     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  ses-
     sions  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 dura-
     tion of the session, and the terminal on which  the  session
     took place.  last also indicates whether the session is con-
     tinuing or was cut short by a reboot.

     The pseudo-user reboot logs  in  when  the  system  reboots.
     Thus,

          last reboot

     will give an indication of mean time between reboots.

     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.

     -n number|-number     Limit 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  will  be  removed  in  future
                         releases.

     -f filename         Use filename as the name of the account-
                         ing file instead of /var/adm/wtmpx.

     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

     utmp(4)