pwck(1M)                                                           pwck(1M)

NAME
     pwck, grpck - password/group file checkers

SYNOPSIS
     /usr/sbin/pwck [file]

     /usr/sbin/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 the program-to-use-as-shell
     exist. 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,
     whether any login names belong to more than NGROUPSMAX groups and
     that all login names appear in the password file. The default group
     file is /etc/group.

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

LOCALE
     The LCMESSAGES environment variable governs the language in which
     message texts are displayed.

     The LCCTYPE environment variable governs character classes, character
     conversion (shifting) and the behavior of character classes in regular
     expressions.

     If LCMESSAGES or LCCTYPE is undefined or is defined as the null
     string, it defaults to the value of LANG. If LANG is likewise unde-
     fined or null, the system acts as if it were not internationalized.

     If any of the locale variables has an invalid value, the system acts
     as if none of the variables was set.

     The LCALL environment variable governs the entire locale. LCALL
     takes precedence over all the other environment variables which affect
     internationalization.

FILES
     /etc/group

     /etc/passwd

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






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