If you're about to do a sequence of commands into a terminal, you can create a transcript with the 'script $filename' command ('script' command is in the util-l

If you're about to do a sequence of commands into a terminal, you can create a transcript with the 'script $filename' command ('script' command is in the util-linux package', according to the man page), and it will capture input/output into the transcript. This would probably make this task easier, since you could see the output data, and how the output data is transformed into arguments into the next command ...