rpc.yppasswdd --version (return code: 0)
rpc.yppasswdd - YP server version 2.19
rpc.yppasswdd --help (return code: 0)
Usage: rpc.yppasswdd [--debug] [-s shadowfile] [-p passwdfile] [-e chsh|chfn]
rpc.yppasswdd [--debug] [-D directory] [-e chsh|chfn]
rpc.yppasswdd [--debug] [-x program |-E program] [-e chsh|chfn]
rpc.yppasswdd --port number
rpc.yppasswdd --version