Sending keyboard input to a program from command-line

Question

How do you send keyboard input to a program?

That is, under a Linux GUI, is there a good manual (programmable) way, or tool, of simulating keyboard input on a running pr

Answer 1

I found these two programs xmacro and xremote you may take a look, but it seems that they're not well documented.

I also found this utility xvkbd in answer to this question SO Q&A titled: Sending keycode to Xorg + wine with bash script.