unshadow - combines passwd and shadow files

       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                                      UNSHADOW(8)

       This  manual page documents briefly the unshadow 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 unshadow tool combines the passwd and shadow files so John can use them. You might need this since if
       you only used your shadow file, the GECOS information wouldn't be used by the "single  crack"  mode,  and
       also  you wouldn't be able to use the '-shells' option. On a normal system you'll need to run unshadow as
       root to be able to read the shadow file.

       unshadow - combines passwd and shadow files

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

unshadowpassword-fileshadow-file