On Mon, Oct 18, 2010 at 09:42:59PM +0530, Manish Kathuria wrote: > Hello, > > Is there any command / option available on CentOS to expire a user's > password immediately ? I remember using "passwd -e" on some other > distribution but the -e option does not seem to be present on CentOS > 5.x. passwd -l (that's a lower case L) as in lock will immediately leave the account available. If you want to make them change their password right now chage -d 0 username Which gives a message Password: You are required to change your password immediately (root enforced) Changing password for test2 (current) UNIX password: -- Scott Robbins PGP keyID EB3467D6 ( 1B48 077D 66F6 9DB0 FDC2 A409 FA54 EB34 67D6 ) gpg --keyserver pgp.mit.edu --recv-keys EB3467D6 The Master: You were destined to die, it was written. Buffy: What can I say? I flunked the written.