Rterm is a simple utility to log into boxes.
The EMULATOR variable should point to something which takes
xterm-style parameters, namely "-T" for the window title,
and "-e" for a command to execute.
Personally, I use kvt.

You can hardcode your fave machine into the code, so "rterm" by
itself will go into that box, or "rterm host" will connect to host.
"rterm host user" will connect to host host as user user.

Phew! The README's longer than the script!