Buy PDF/EPUB versions

You can buy the pdf/epub versions of the book using these links:


You can also get the book as part of these bundles:


Step up your cli fu with this fabulous intro & deep dive into awk. I learned a ton of tricks!

feedback on twitter

I consider myself pretty experienced at shell-fu and capable of doing most things I set out to achieve in either bash scripts or fearless one-liners. However, my awk is rudimentary at best, I think mostly because it's such an unforgiving environment to experiment in.

These books you've written are great for a bit of first principles insight and then quickly building up to functional usage. I will have no hesitation in referring colleagues to them!

feedback on Hacker News

Book list

Here's a list of programming books I've written: