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

Same as Idelic answer with more simple syntax ;)

cat your_file_with_commands - | sh your_script

Answer 2

Have you tried using something like tail -f commandfile | command I think that should pipe the lines of the file to command without closing the file descriptor afterwards. Use -n to specify the number of lines to be piped if tail -f doesn't catch all of them.

Answer 3

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.

Answer 4

I would think expect would work for this.