Very common for me to write shell scripts that generate shell scripts to run.

Instead of creating gnuplot scripts to loaded, sometimes a good sequence of echo "set terminal png 800,600; plot..." | gnuplot > my.png

or a very long imagemagick drawing command or a simple svg generated then converted to png then assembled (thank montage), can do the job.

The whole advantage of generating intermediate shell scripts, is to replay one part specifically to debug a small part of a script pipeline.