Table of Contents
Chapter 1. Why Shell Programming?...............................................................................................................1
Chapter 2. Starting Off With a Sha−Bang.......................................................................................................3
2.1. Invoking the script............................................................................................................................6
2.2. Preliminary Exercises.......................................................................................................................6
Part 2. Basics.......................................................................................................................................................7
Chapter 3. Special Characters...........................................................................................................................8
Chapter 4. Introduction to Variables and Parameters..................................................................................25
4.1. Variable Substitution......................................................................................................................25
4.2. Variable Assignment.......................................................................................................................27
4.3. Bash Variables Are Untyped..........................................................................................................28
4.4. Special Variable Types...................................................................................................................30
Chapter 5. Quoting...........................................................................................................................................34
Chapter 6. Exit and Exit Status.......................................................................................................................40
Chapter 7. Tests................................................................................................................................................42
7.1. Test Constructs...............................................................................................................................42
7.2. File test operators............................................................................................................................48
7.3. Other Comparison Operators..........................................................................................................51
7.4. Nested if/then Condition Tests.......................................................................................................56
7.5. Testing Your Knowledge of Tests..................................................................................................56
Chapter 8. Operations and Related Topics....................................................................................................58
8.1. Operators.........................................................................................................................................58
8.2. Numerical Constants.......................................................................................................................64
Part 3. Beyond the Basics.................................................................................................................................66
Chapter 9. Variables Revisited........................................................................................................................67
9.1. Internal Variables............................................................................................................................67
9.2. Manipulating Strings.......................................................................................................................84
9.2.1. Manipulating strings using awk............................................................................................88
9.2.2. Further Discussion.................................................................................................................89
9.3. Parameter Substitution....................................................................................................................89
9.4. Typing variables: declare or typeset...............................................................................................97
9.5. Indirect References to Variables.....................................................................................................99
9.6. $RANDOM: generate random integer..........................................................................................101
9.7. The Double Parentheses Construct...............................................................................................110
Chapter 10. Loops and Branches..................................................................................................................112
10.1. Loops..........................................................................................................................................112
10.2. Nested Loops..............................................................................................................................123
10.3. Loop Control...............................................................................................................................123
Advanced Bash−Scripting Guide
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2011-09-09
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yyii1232012-03-28用上了，很好，可惜是英文版本，找起来很耗时啊，谢谢楼主
