Switch from file contents to STDIN in piped command? (Linux Shell)

Question

I have a program (that I did not write) which is not designed to read in commands from a file. Entering commands on STDIN is pretty tedious, so I\'d like to be able to autom

Answer 1

I would do something like

(cat your_file_with_commands; cat) | sh your_script

That way, when the file with commands is done, the second cat will feed your script with whatever you type on stdin afterwards.