• General Code Style
• Indentation
• Line Length and Long Strings
• Bad:
• Good:
• Good:
• Pipelines
• Bad:
• Good:
• Good: All fits on one line
• Use environment variables
• Bad:
• Good:
• If / For / While
• Good:
• Variables
• Naming Conventions
• Bad:
• Good:
• Bad:
• Good:
• Bad:
• Good:
• Good:
• Use local variables
• Bad:
• Good:
• Bad: with global variables
• Good: with local variables
• Constants and Environment Variable Names
• Constant:
• Constant and environment:
• Read-only Variables
• Functions
• Naming Conventions
• Bad:
• Good:
• Good:
• Use and check return values
• Bad:
• Good:
• Check return values
• Bad:
• Good:
• Good:
• Good: use "$?" to get the last return value
• Features and Bugs
• Command Substitution
• Bad:
• Good:
• Eval
• References