How to install optparse
brew install gnu-sed optparse use case
Simplify command-line argument parsing in bash scripts by defining short/long options, flags, and defaults with minimal code.
When to use optparse
- Writing bash scripts that require robust handling of CLI arguments with short and long options
- Automating deployment or maintenance tasks where scripts accept multiple parameters
- Replacing manual getopts parsing with a cleaner, declarative syntax
When not to use optparse
- When the script is trivial and only needs positional arguments
- When using a more feature-rich language like Python with argparse
- When the target shell is not bash (e.g., zsh, fish) without adaptation
optparse features
- · Define short and long option names per argument
- · Set default values for optional arguments
- · Declare flag variables with explicit true/false values
- · Auto-generate help/usage from definitions
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