[caludio]

Site is "Hacker News", not "How-tos for dummies", last time I checked. Do we really need this kind of stuff in home page? Hardly so. What about an article on how to create a three columns layout with CSS? Or how to edit a file using a text editor? Come on... how to use curl? Really?

[Hermitian]

Seeing that 200+ people upvoted, it would suggests that enough people found it useful.

I will admit that I am not familiar with curl and I found this helpful and enlightening. If you don't find it useful, then just move on. We come to HKN to learn about the other aspects that we are not familiar with. Just be mindful that not everyone have the same expertise.

[mixmastamyk]

Not every hacker knows every tool well. I wouldn't sweat it.