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Chapter 7. Conditional statements
- Table of Contents
- 7.1. Introduction to if
- 7.1.1. General
- 7.1.2. Simple applications of if
- 7.2. More advanced if usage
- 7.2.1. if/then/else constructs
- 7.2.2. if/then/elif/else constructs
- 7.2.3. Nested if statements
- 7.2.4. Boolean operations
- 7.2.5. Using the exit statement and if
- 7.3. Using case statements
- 7.3.1. Simplified conditions
- 7.3.2. Initscript example
- 7.4. Summary
- 7.5. Exercises
In this chapter we will discuss the use of conditionals in Bash scripts. This includes the following topics:
The if statement
Using the exit status of a command
Comparing and testing input and files
if/then/else constructs
if/then/elif/else constructs
Using and testing the positional parameters
Nested if statements
Boolean expressions
Using case statements