NAME [Toc] [Back]
pwck, grpck - password/group file checkers
SYNOPSIS [Toc] [Back]
/usr/sbin/pwck [-l] [password [shadow]]
/usr/sbin/pwck [-s] [-l] [password]
DESCRIPTION [Toc] [Back]
pwck scans fields in the password and shadow files 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 exist. In addition, if the root
entry shows a program, it can only be one of: /sbin/sh, /usr/bin/csh,
/usr/bin/ksh, or /usr/bin/sh. The criteria for validation is in
passwd and shadow, and is described in the Managing Systems and
Workgroups manual. The default password file is /etc/passwd. The
default shadow file is /etc/shadow. For additional verification, use
pwconv, to check consistency between entries in the password and
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
Options [Toc] [Back]
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 in Trusted mode, password
lengths must not be longer than 8 characters.
DIAGNOSTICS [Toc] [Back]
Group entries in /etc/group with no login names are flagged.
WARNINGS [Toc] [Back]
Successful password file validation is not sufficient for proper
system operation. To help maintain consistency with other system
databases, editing of the password file with vipw is discouraged. HP
recommends that you use sam, useradd, usermod, userdel, chfn, chsh or
passwd to edit /etc/passwd.
DEPENDENCIES [Toc] [Back]
Hewlett-Packard Company - 1 - HP-UX 11i Version 2: August 2003
NFS [Toc] [Back]
pwck and grpck check only the local password, shadow and group files.
The Network Information Service database is not checked.
AUTHOR [Toc] [Back]
pwck was developed by AT&T and HP.
FILES [Toc] [Back]
SEE ALSO [Toc] [Back]
authck(1M), pwconv(1M), vipw(1M), group(4), passwd(4), shadow(4).
STANDARDS CONFORMANCE [Toc] [Back]
pwck: SVID2, SVID3
grpck: SVID2, SVID3
Hewlett-Packard Company - 2 - HP-UX 11i Version 2: August 2003 [ Back ]