Video
Exit Statuses, Return Codes, String Test Conditionals, More Special Variables.

Concepts covered in this lesson:

  • Exit status conventions.

  • Controlling the exit status of your shell script with the exit shell builtin.

  • Shell Special Variables.

  • Checking the return code or exit status of a command by examining the contents of the $? special variable.

  • String test conditionals.

  • DRY – Don’t Repeat Yourself.


Skills that you will get in this material