4.3BSD-UWisc/man/cat1/last.1

LAST(1)             UNIX Programmer's Manual              LAST(1)



NAME
     last - indicate last logins of users and teletypes

SYNOPSIS
     last [ -N ] [ name ...  ] [ tty ...  ]

DESCRIPTION
     _L_a_s_t will look back in the _w_t_m_p file which records all
     logins and logouts for information about a user, a teletype
     or any group of users and teletypes.  Arguments specify
     names of users or teletypes of interest.  Names of teletypes
     may be given fully or abbreviated.  For example `last 0' is
     the same as `last tty0'.  If multiple arguments are given,
     the information which applies to any of the arguments is
     printed.  For example `last root console' would list all of
     "root's" sessions as well as all sessions on the console
     terminal.  _L_a_s_t will print the sessions of the specified
     users and teletypes, most recent first, indicating the times
     at which the session began, the duration of the session, and
     the teletype which the session took place on.  If the ses-
     sion is still continuing or was cut short by a reboot, _l_a_s_t
     so indicates.

     The pseudo-user reboot logs in at reboots of the system,
     thus

          last reboot

     will give an indication of mean time between reboot.

     _L_a_s_t with no arguments prints a record of all logins and
     logouts, in reverse order.  The -N option limits the report
     to N lines.

     If _l_a_s_t is interrupted, it indicates how far the search has
     progressed in _w_t_m_p. If interrupted with a quit signal (gen-
     erated by a control-\) _l_a_s_t indicates how far the search has
     progressed so far, and the search continues.

FILES
     /usr/adm/wtmp       login data base
     /usr/adm/shutdownlog     which records shutdowns and reasons
     for same

SEE ALSO
     wtmp(5), ac(8), lastcomm(1)

AUTHOR
     Howard Katseff






Printed 12/27/86         April 29, 1985                         1