1. echo the usage of comments and try using a multi-line comment

2. inside your main script write another script named exit_code.sh to do an optional task using <<EOF 2.2 then make the file executable. Ensure that each part is spectified

3. install Nginx and get the first 3 lines of its conf using pipes.

4. initialize a git directory somewhere in your system and add READ + LICENSE then use git add . . finally, commit them using commit -m " initail commit" . (optional)

• You can certainly play with the output (redirection) of each command if needed :)

• cmd &> /dev/null, cmd > /dev/null 2>&1 and cmd > /dev/null 2> /dev/null are identical.

• 2>&1 is considered and read from right to left not left to right

• if the return (exit) code of an operation is non-zere it has failed otherwise, it's been successful.

• you can use <<EOF with pipe as well.

Bash scripts related to every session of this tutorial will be stored in isolated branches named after their session name.

You can access the main code and the challenge answer key related to every session at their own branch.