Do you have a command line based application that you run frequently? Always making the same inputs and responding in the same way to its prompts? Like to save some time? Then use Expect. Expect is an application that's built on top of Tcl and provides you with commands to spawn (start up) new processes that you wish to control, send them information as if it was typed at the keyboard, and expect back certain specific responses. With an Expect program, you can also look for a number of alternative responses, or even a response matching a particular pattern .... which means that you can extend your application automation easily to take care of a wide variety of circumstances. This picture is of a trainee on our public Tcl and Expect course, taken during a practical session.

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More about automation with Expect

Associated topic - Tcl/Tk - What is Expect? Why use it?

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