Undefined Value

These are the half-dozen-or-so things I need to re-learn whenever I have to write a Bash script.

(And yes, I do know that the cool kids use zsh or fish instead of bash. You don't need to point that out to me.)

Good Online Resources

• BASH Programming - Introduction HOW-TO
• Advanced Bash Scripting Guide
• bash(1) Linux man page

Snippets