


      PWCK(1)                     (UNIX 5.2)                    PWCK(1)



      NAME
           pwck, grpck - password/group file checkers

      SYNTAX
           /etc/pwck [file]
           /etc/grpck [file]

      DESCRIPTION
           Pwck scans the password file and notes any inconsistencies.
           The checks include validation of the number of fields, login
           name, user ID, group ID, and whether the login directory and
           optional program name exist.  A valid login name is eight
           characters or less, consists of lowercase letters and digits
           only, and begins with an alphabetic character, The default
           password file is /etc/passwd.

           Grpck verifies all entries in the group file. This
           verification includes a check of the number of fields, group
           name, group ID, and whether all login names appear in the
           password file. The default group file is /etc/group.

      FILES
           /etc/group
           /etc/passwd

      SEE ALSO
           group(4), passwd(4).

      DIAGNOSTICS
           Group entries in /etc/group with no login names are flagged.

























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