How do i list all locked account in linux?

pinga123 · 11-29-2010, 05:40 AM

Hi
How do i list all locked account in my linux distributiion
I have tried
passwd -S -a
but it seems to not working .
My distribution details.

Code:

# lsb_release -a
LSB Version:    :core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: OracleVMserver
Description:    Oracle VM server release 2.2.0
Release:        2.2.0
Codename:       n/a


# uname -a
Linux  2.6.18-128.2.1.4.9.el5xen #1 SMP Fri Oct 9 14:57:31 EDT 2009 i686 i686 i386 GNU/Linux

colucix · 11-29-2010, 06:05 AM

On my system (CentOS 5.5) there is not a -a option of passwd and the option -S (available only to root) requires a user name. Yyou can either create a list of users and execute the passwd -S command in a loop or parse the /etc/shadow file to check the second field. Locked accounts have one or two exclamation marks prepended to the second field so that

Code:

awk -F: '$2 ~ /^!/' /etc/shadow

should do the trick. If you want to exclude system users for which a password has been never set (hence the second field is just one or two exclamation marks) you can try

Code:

awk -F: '$2 ~ /^!+[^!]/' /etc/shadow

Hope this helps.