NAME
login_chpass – change password authentication type
SYNOPSIS
login_chpass [-s service] user [class]
DESCRIPTION
The login_chpass utility is typically called from login(1). It is functionally the same as calling the program: “passwd user”. This will use the login_lchpass(8) utility to change the user's local password.
Only the login service is supported. See login.conf(5). The class argument is not used.