Nicely written tutorial. The only thing I would suggest is always prefering [[ to [ because it makes dealing with parameter expansions much more easier. Also [[ is most likely as shell builtin, in contrast to [, which is most likely an external program.
I was really disappointed after reading the article. It was far too short, and contained no useful information. Actually, what is the point of such articles anyhow?
Your comment is the reason why I detest the community on HN. If I would have put my personal time into this, and would read such a comment, I would find it extremely demotivating. The solution may not be perfect but it would be much more helpful if you constructive criticism instead of this.
So true. I'm working on 2 personal projects at the moment. Sometimes I spend hours on it, sometimes only minutes. But I work on them EVERY single day. It always fun working on them. There is no fixed schedule, there are not milestones (ofc the is some sort of vision), still I progress quite fast and stay motivated.
When I look for inspiration for new projects or new ideas, I often look out for posts like yours. Things that people would love to have, which don't exist yet and solve a real problem. This is a really great idea... maybe when I have some time to spare somewhere in the near future, I will try to implement something like that :-).
A month ago I finished a project for university, involving Node.js - nothing more. At the beginning, I've started with Node.js, mongoDB, socket.io. express and connect. Half way through the project, I realized I would never be able to deliver in time. So I started to cut out technologies... first mongoDB, socket.io, express, and in the end, even connect. Even dealing with Node alone, I had a hard time finishing my project... but I did. I still got quite a good grade because in contrast to my fellow students, I was able to deliver.