workout/hints/Shell.md

Unix Shell

Manuals you'd need

Testing

If you want to test a string, value or a path, you can use [

E.g.

[ 1 = 1 ] will return 0, which means true

Getting Values from CLI

Usually, $# means number of arguments, while $1, $2 ... returns the argument.

Special cases:

1. $@ returns all arguments
2. $0 returns the program itself

Pro tip: there are multiple ways to do this :)