How to Change the Password on a Unix or Linux System
Q. How can I change my password while working on a Unix like system?
A. This command works on any Unix like system, from Unix itself to Linux and Mac OS X. The command to use is
Will ask for you to enter your old password, and then the new one twice. If you need to change the password of another user.
sudo passwd some-user
This time it will not ask for the old password, and will just ask for the new one twice.