Advanced Bash-Scripting Guide: A complete guide to shell scripting, using Bash
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Part 4. Advanced Topics

Table of Contents

19. Regular Expressions

19.1. A Brief Introduction to Regular Expressions
19.2. Globbing

20. Subshells

21. Restricted Shells

22. Process Substitution

23. Functions

23.1. Complex Functions and Function Complexities
23.2. Local Variables and Recursion

24. Aliases

25. List Constructs

28. /dev and /proc

28.1. /dev
28.2. /proc

29. Of Zeros and Nulls

30. Debugging

31. Options

32. Gotchas

33. Scripting With Style

33.1. Unofficial Shell Scripting Stylesheet

34. Miscellany

34.1. Interactive and non-interactive shells and scripts
34.2. Shell Wrappers
34.3. Tests and Comparisons: Alternatives
34.4. Optimizations
34.5. Assorted Tips
34.6. Oddities
34.7. Portability Issues

35. Bash, version 2

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