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grpck(1B)
check group database entries
From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.
NAME
grpck - check group database entries
SYNOPSIS
/usr/ucb/grpck [ filename ]
DESCRIPTION
grpck checks that a file in group(4) does not contain any errors; it checks the /etc/group file by default.
This command differs from /usr/sbin/grpck in its ability to correctly parse YP entries in /etc/passwd.
FILES
/etc/group
SEE ALSO
group(4), passwd(4) in the System Administrator's Reference Manual.
DIAGNOSTICS
Too many/few fields
An entry in the group file does not have the proper number of fields.
No group name
The group name field of an entry is empty.
Bad character(s) in group name
The group name in an entry contains characters other than lower-case letters and digits.
Invalid GID
The group ID field in an entry is not numeric or is greater than 65535.
Null login name
A login name in the list of login names in an entry is null.
Login name not found in password file
A login name in the list of login names in an entry is not in the password file.