Power searching using grep

I use it almost every day, but in a very limited way and I can't say I really understand it I just have a feeling that it you could use it so much more

Learning regular expressions properly is something I've been saving for later for a long time; thinking that, one day, it could make me a real programmer.

Now, after one year and a half of exclusive vimming, I've learned a lot more on regex than in all the years before. Whithout actually trying.