[root@debian13:~]# LANG=C
Reformatting passwd(1), please wait...
PASSWD(1)                        User Commands                       PASSWD(1)
NAME
       passwd - change user password
SYNOPSIS
       passwd [options] [LOGIN]
DESCRIPTION
       passwd changes passwords for user accounts. A normal user may only
       change the password for his/her own account, while the super user may
       change the password for any account.  passwd also changes account
       information, such as the full name of the user, the user's login shell,
       or his/her password expiry date and interval.
   Password Changes
       The user is first prompted for his/her old password, if one is present.
       This password is then encrypted and compared against the stored
       password. The user has only one chance to enter the correct password.
       The super user is permitted to bypass this step so that forgotten
       passwords may be changed.
       After the password has been entered, password aging information is
passwd (1)           - change user password
passwd (5)           - the password file