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    Command:

    lastlog

    
    
    

    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 of the specified user(s).
    
               The users can be specified by a login name, 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.
    
           Only the entries for the current users of the system will be displayed.
           Other entries may exist for users that were deleted previously.
    
    
    

    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).
    
    
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