Add another 30 minutes or so for learning how to write a shell script. I mean how to pass variables into a shell script and stuff like that. Actually no idea if

Add another 30 minutes or so for learning how to write a shell script. I mean how to pass variables into a shell script and stuff like that. Actually no idea if 30 minutes are sufficient for learning how to write shell scripts (it can get pretty confusing with environment variables that are suddenly not available and what not).