unique - removes duplicates from a wordlist

       This manual page was written by Jordi Mallach <jordi@debian.org>, for the Debian  GNU/Linux  system  (but
       may be used by others).
       John  the  Ripper  and  mailer  were written by Solar Designer <solar@openwall.com>. The complete list of
       contributors can be found in the CREDITS file in the documentation directory.

john                                              June 03, 2004                                        UNIQUE(8)

       This  manual  page  documents briefly the unique command, which is part of the john package.  This manual
       page was written for the Debian GNU/Linux distribution because the  original  program  does  not  have  a
       manual  page.   john,  better  known  as  John the Ripper, is a tool to find weak passwords of users in a
       server.
       The unique tool finds and removes duplicate entries from a wordlist (read from stdin),  without  changing
       the order. This is important to increase the performance of john when using the wordlist method.

       unique - removes duplicates from a wordlist

john(8), mailer(8), unafs(8), unshadow(8).

       The   programs   are   documented   fully   by   John's  documentation,  which  should  be  available  in
       /usr/share/doc/john or other location, depending on your system.

uniqueoutput-file