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argparse for python makes it quick and easy to handle command-line input, handling positional arguments, optional arguments, flags, input validation and much more. I’ve started writing applications in node.js and I’m finding it tedious and time consuming to write all that stuff manually.
Is there a node.js module for handling this?
There are a slew of various command line argument handlers at https://github.com/joyent/node/wiki/modules#wiki-parsers-commandline
The one I use in most projects is https://github.com/visionmedia/commander.js though I would take a look at all of them to see which one suits your specific needs.