What bugged me more was the snippets designed to show how hard it is to write shell scripts. It looked like the author just didn't know enough about their tools

What bugged me more was the snippets designed to show how hard it is to write shell scripts. It looked like the author just didn't know enough about their tools: >How to touch all files in foo (and its subfolders)? find foo -print0 | xargs -0 touch find foo -exec touch {} \; I agree with the other commenters who think it's fine to write whatever you like on your own blog, I just feel that it went from interesting historical warts to bagging on legacy systems because they're complicated.