chklastlog man page on Ubuntu

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CHKLASTLOG(1)							 CHKLASTLOG(1)

NAME
       chklastlog - check lastlog-file for deleted entries

SYNOPSIS
       chklastlog

DESCRIPTION
       Chklastlog  is  reading	all  entries from the file /var/log/wtmp (file
       with informations about logins and logouts) and checks for  every  user
       found in this file whether there is an entry in the file /var/log/last‐
       log, too. The program will complain about userids with  logins  but  no
       lastlogin information.

       To  run	chklastlog you need read permission on the files /var/log/wtmp
       and /var/log/lastlogin. Normally these files are world-readable and  no
       special privileges are required to run the checker.

FILES
       /var/log/wtmp	   login data base
       /var/log/lastlog	   last login times

SEE ALSO
       wtmp(4), who(1), last(1)

LIMITATIONS
       This  program  only works if the user has not logged in after the dele‐
       tion of their lastlog entry.

       This program was designed to run on SunOS 4.x systems  only.  On	 other
       systems the output is undefined...

7th Edition			Thu Oct 12 1994			 CHKLASTLOG(1)
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