I'd like to install a certain bash script called 42FileChecker using the commands:
git clone https://github.com/jgigault/42FileChecker ~/42FileChecker &&
cd ~/42FileChecker &&
bash ./42FileChecker.sh
But I don't know if 42FileChecker.sh will do any strange things on my PC because I'm a beginner and don't know what is happening in that script. Is there a way to run it in a dummy terminal or dummy root folder or something like that to see what happens so that I avoid something crazy like formatting of my drives. I'd like to know of any way to test shells for future shell scripts also, even if 42FileChecker.sh is safe.