Posted On 2007-05-02 by FortyPoundHead
Keywords: Command Reference
Tags: Linux Commandline Linux
Views: 1584

Modify a user password.

passwd [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 messageIf 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

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