hash: You’ve Probably Never Heard Of This Thing That Affects Every Command You’ve Ever Typed In A Terminal
When you type a command into the terminal, how does the computer know where to
find the program you asked it to run?
Dumb question, I know. It's which, right?
$ which ls
/bin/ls
Actually, no. Here's the problem with which. which finds the program you ask it
for, but