1. tinylogin --help

Tinylogin v1.4 (2005.05.11-02:31+0000) multi-call binary

Usage: tinylogin [function] [arguments]...

   or: [function] [arguments]...

        TinyLogin is a multi-call binary that combines several tiny Unix
        utilities for handling logins, user authentication, changing passwords,
        and otherwise maintaining users and groups on an embedded system.  Most
        people will create a link to TinyLogin for each function they wish to
        use, and TinyLogin will act like whatever it was invoked as.

Currently defined functions:

        addgroup, adduser, delgroup, deluser, getty, login, passwd, su,
        sulogin, tinylogin, vlock