Whatever hacky script you are writing already exists in GNU Core Utilities

| linux | devops |

When I think of bash, I think of writing hacky scripts that do random things utilizing “bash commands”. It turns out that the parts of bash that “do stuff” such as echo, cut, cat are part of a larger program called GNU Core Utilities.

The GNU Core Utilities are the basic file, shell and text manipulation utilities of the GNU operating system.These are the core utilities which are expected to exist on every operating system.
Source: Coreutils - GNU core utilities I am working on a general purpose backup utility and this evening I was moments away from writing something like this: perl -e (print split("/\//", "/foo/bar/baz.tar.gz")

My goal was to try to extract the base file name from a given directory (I recognize that that code does not actually do that). Then I realized that this was pure madness and there had to be a better way. This is when I discovered the handy basename program. It simply does the needful. GNU Core Utilities is full of all sorts of gems such as this one. My main takeaway from this is to read the entire GNU Core Utilities manual so I can stop writing horrible things.

Thank you for reading! Share your thoughts with me on bluesky, mastodon, or via email.

Check out some more stuff to read down below.

Most popular posts this month

Recent Favorite Blog Posts

This is a collection of the last 8 posts that I bookmarked.

Articles from blogs I follow around the net

Hacking Workshop for September 2026

I'm pleased to announce that David Rowley will be joining us in September to discuss his talk Optimizing code in the hot path; with examples from tuple deformation. If you're interesting in joining us, please sign up using this form and I will send you an...

via Robert Haas July 31, 2026

One and one thing only

I wanted to show you a year’s worth of messages from my barber’s software, because this is what software should be. No spam, no upsells, no growth hacks, no unwelcome cuteness or puzzling verbosity. It’s so curt and straight to the point it should be set i...

via Unsung July 31, 2026

Pluralistic: Better to beg forgiveness (31 Jul 2026)

Today's links Better to beg forgiveness: Don't ring the doorbell at the house of no unless you absolutely must. Hey look at this: Delights to delectate. Object permanence: RIP Poul Anderson; P2P at PC Forum; Waitress handed her own stolen ID by carded dine...

via Pluralistic: Daily links from Cory Doctorow July 31, 2026

Generated by openring