Modify a user password.
SYNTAX passwd [options...]
OPTIONS -d, --delete delete the password for the named account (root only) -f, --force force operation (effectively calls `chfn'?) -k, --keep-tokens keep non-expired authentication tokens -l, --lock lock the named account (root only) -S, --status report password status on the named account (root only) --stdin read new tokens from stdin (root only) -u, --unlock unlock the named account (root only) -?, --help Show this help message --usage Display brief usage message
If no options are specified - passwd will change the password of the currently logged in user - will prompt for the old and new passwords.
Password aging (for new accounts) can be set to
enforce a limited lifetime for each password: /etc/login.defs
parameters: PASS_MAX_DAYS, PASS_MIN_DAYS, PASS_WARN_AGE
"Chico : you can't come in unless you give the password...
Well, what is the password?... I got it! Haddock! ~ Groucho Marx
chgrp - Change group ownership
chage - Set password age
chmod - Change access permissions
chown - Change file owner and group
quotactl - Set disk quotas
who - Print who is currently logged in
Equivalent Windows command: NET USER username * /domain