Although widely used, dip hasn't been very well documented yet.
In this section, we will therefore give a reference for most of
dip's commands. You can get an overview of all commands it
provides by invoking dip in test mode, and entering the
help command. To find out about the syntax of a command, you may
enter it without any arguments; of course this does not work with
commands that take no arguments.
DIP knows about the following commands:
databits default dial echo flush
get goto help if init
mode modem parity print port
reset send sleep speed stopbits
Usage: echo on|off
Throughout the following, examples that display the DIP>
prompt show how to enter a command in test mode, and what output
it produces. Examples lacking this prompt should be taken as