Ask HN: What's the silliest thing you need to frequently look up?

[peteretep]

Noticed today I _still_ don't remember what the middle argument for a three-part `for` loop is meant to be, and I look it up every single time. I'm a strong programmer with almost 30 years of experience, most of which is in languages that have `for` loops.

What do you still look up, or what useful mnemonic do you have? I stopped having to lookup argument order for `ln` after someone pointed out it was the same as `cp`.

[eindiran]

I saw the question and immediately though of the argument order of `ln`. I have to look it up every time I use it. "Is it `target` then `link`, or the other way?" Remembering that the order is the same as `cp` seems like a promising trick.

[Khelavaster]

The location of the Windows hosts file.

[EvanKnowles]

¯\_(ツ)_/¯