Script to change password on linux servers over ssh

Question

We have a number of Red Hat linux servers in our IT environment. I am being asked by my team members to write a script (preferably shell script) to change a user\'s password

Answer 1

Thought I should put my solution in an answer field - not sure if this should be a part of the question..

OK, I have put together a partially working solution using Dennis' suggestion.

servers.txt looks like:

server1
server2
server3
.
.
.

I am using:

for server in `cat servers.txt`; do
ssh $server -l user 'passwd <

This produces:

user@server1's password: ****
(current) UNIX password: New UNIX password: Retype new UNIX password: Changing password for user user.
Changing password for user
passwd: all authentication tokens updated successfully.
user@server2's password: ****
(current) UNIX password: New UNIX password: Retype new UNIX password: Changing password for user user.
Changing password for user
passwd: all authentication tokens updated successfully.

So here, I still need to type my old password once for each server. Can this be avoided?