dashdash

Parse command-line options and arguments in Node.js programs.

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A light, featureful and explicit option parsing library.

parse command line arguments in a Node.js script$ node script.js --verbose --output file.txt

handle boolean flags and options with values$ node app.js --debug --config=config.json --port 3000

parse short and long option formats together$ node tool.js -v -o output.txt --format json

validate required arguments and show help messages$ node cli.js --help

parse positional arguments after options$ node deploy.js --env production server1 server2 server3