NAME
pwck, grpck — password/group file checkers
SYNOPSIS
/usr/sbin/pwck
[-s]
[-l]
[file]
/usr/sbin/grpck
[file]
DESCRIPTION
pwck
scans the default password file or
file
and reports any inconsistencies to standard error.
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.
The criteria for determining a valid login name are described in the
Managing Systems and Workgroups
manual.
The default password file is
/etc/passwd.
grpck
verifies all entries in the group file
and reports any inconsistencies to standard error.
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.
Options
pwck
recognizes the following options:
- -s
Check inconsistencies with the Protected Password database. It calls
authck
-p.
- -l
Check encrypted password lengths that are greater than 8 characters.
If
Nis+
is running with Trusted mode, password lengths must not be
longer than 8 characters.
DIAGNOSTICS
Group entries in
/etc/group
with no login names are flagged.
AUTHOR
pwck
was developed by AT&T and HP.
DEPENDENCIES
NFS:
pwck
and
grpck
check only the local password and group files.
The Network Information Service database
for password and group files is not checked.
STANDARDS CONFORMANCE
pwck: SVID2, SVID3
grpck: SVID2, SVID3
