The submission begins with these examples: for f in *.txt; do wc -l "$f" done Or this? find . -name '*.sh' -exec wc -l {} +

The submission begins with these examples: for f in *.txt; do wc -l "$f" done Or this? find . -name '*.sh' -exec wc -l {} + Or maybe you pipe into xargs and pray your filenames don't have spaces: find . -name '*.log' | xargs rm Is that "software engineering" Looks more like "system administration"