Chapter 7

1. What do we, by convention, do as the first thing when we learn a new programming or scriping language?
   We print the string "Hello World".
2. What is the shebang for Bash?
   #!/bin/bash
3. Why is the shebang needed?
   If we're running the script without specifying which program we should use, the shebang will allow Linux to use the correct one.
4. In what three ways can we run a script?
   • By using the program which we want to run it with: bash script.sh
   • By setting the executable permission and prefixing the scriptname with ./: ./script.sh

 

• • By setting the executable permission and using the fully qualified path to the file: /tmp/script.sh

5. Why do we place such emphasis on readability when creating shell scripts?
   • Scripts are much easier to use if the person using them can easily understand what the script does
   • If anyone other than yourself needs to edit...