I can't think of material that is more appropriate for HN. Sed is one of the most popular text manipulation tools in the history of Unix. Peteris' ebooks are well authored, to the point, and wonderfully insightful.

I would have up voted without comment were it not for this post.

I voted for it because I know Peteris and I like the book (I got a preview copy though ;)

EDIT: I mean I had already read the book before he posted it.

I didn't upvote, but the 4 sed programs he offered definitely spiked my interest.

(My criterion for an upvote here would be if he had himself written and/or explained those programs in his post.)

All in all, can't complain about having found this in the front page.

I don't know about the book, but the posts it is based on (usefully linked to from the linked article, http://www.catonmat.net/blog/sed-one-liners-explained-part-o... if anyone wants a more direct link) are certainly worth a scan so it probably got a good few votes for that. I might have to consider purchasing the book myself.

I'll send you a present if you buy a copy. :)

pkrumins is a prolific hacker and writer.