Provided by: login_4.0.13-7ubuntu3_i386 bug


       lastlog - examine lastlog file


       lastlog [options]


       lastlog formats and prints the contents of the last login log
       /var/log/lastlog file. The login-name, port, and last login time will
       be printed. The default (no flags) causes lastlog entries to be
       printed, sorted by their order in /etc/passwd.


       The options which apply to the lastlog command are:

       -b, --before DAYS
              Print only lastlog records older than DAYS.

       -h, --help
              Display help message and exit.

       -t, --time DAYS
              Print the lastlog records more recent than DAYS.

       -u, --user LOGIN
              Print the lastlog record for user with specified LOGIN only.

       The -t flag overrides the use of -u.

       If the user has never logged in the message ** Never logged in** will
       be displayed instead of the port and time.


       The lastlog file is a database which contains info on the last login of
       each user. You should not rotate it. It is a sparse file, so its size
       on the disk is much smaller than the one shown by "ls -l" (which can
       indicate a really big file if you have a high UID). You can display its
       real size with "ls -s".


              lastlog logging file


       Large gaps in uid numbers will cause the lastlog program to run longer
       with no output to the screen (i.e. if mmdf=800 and last uid=170,
       program will appear to hang as it processes uid 171-799).


       Julianne Frances Haugh (

       Phillip Street

                                  10/01/2005                        LASTLOG(8)