Beyond the Basics
Advanced Bash-Scripting Guide:
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Part 3. Beyond the Basics

Table of Contents
9. Variables Revisited
9.1. Internal Variables
9.2. Manipulating Strings
9.3. Parameter Substitution
9.4. Typing variables: declare or typeset
9.5. Indirect References
9.6. $RANDOM: generate random integer
9.7. The Double-Parentheses Construct
10. Loops and Branches
10.1. Loops
10.2. Nested Loops
10.3. Loop Control
10.4. Testing and Branching
11. Command Substitution
12. Arithmetic Expansion
13. Recess Time
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Numerical Constants Variables Revisited
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