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I can't emphasise how true this is. I've written tonnes of temporary scripts that parse some files or rename some directories, and then later discovered that I could have done it with a single UNIX command.

I'm not employed as a professional software developer, so I still don't actually use the helpful UNIX commands. Takes all the fun out of it. :P



The other day I had problems with grep, so I rewrote it in JavaScript ... I could have used awk, but at least my script is more then double as fast as awk. I think it's some sort of procrastination and being self managed. Reminds me that I should get off HN and start working.


> I could have used awk, but at least my script is more then double as fast as awk.

I find this very hard to believe. Are you sure your awk implementation was okay?


I used this:

  awk '/pattern/' file
I could upload my JavaScript to Github if anyone is interested.


What problem did you have that the easiest way to solve it was by rewriting grep?


I was investigating an e-mail problem, searching log files across several e-mail servers ... Did it go through this server, or that server ? After a lot of frustration I found out grep didn't show all matches ... I does report the right amount with the -c argument though.


... in JavaScript, of all things? And it's somehow fast?




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