Provided by: login_4.0.18.2-1ubuntu2_i386 bug

NAME

       lastlog - reports the most recent login of all users or of a given user

SYNOPSIS

       lastlog [options]

DESCRIPTION

       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.

OPTIONS

       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|RANGE
           Print the lastlog record for user with specified LOGIN only.

           Instead of a login name, lastlog also accepts a numerical user ID
           or a RANGE of users. This RANGE of users can be specified with a
           min and max values (UID_MIN-UID_MAX), a max value (-UID_MAX) or a
           min value (UID_MIN-).

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

NOTE

       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 usually much smaller than the one shown by "ls -l"
       (which can indicate a really big file if you have in passwd users with
       a high UID). You can display its real size with "ls -s".

FILES

       /var/log/lastlog
           Database times of previous user logins.

CAVEATS

       Large gaps in UID numbers will cause the lastlog program to run longer
       with no output to the screen (i.e. if in lastlog database there is no
       entries for users with UID between 170 and 800 lastlog will appear to
       hang as it processes entries with UIDs 171-799).