cobra

Are you familiar with https://github.com/spf13/cobra? It's used by a few heavy hitters (kubernetes's kubectl) and it provides you a bit of help with bash completion: https://github.com/spf13/cobra/blob/master/bash_completions.... I just added bash completion to a few internal tools that work with kafka, basically just autocompleting topics. It was a little harder than I would have liked (who wants to write all that bash), and I had to fix a bug in Cobra, but overall it wasn't that bad. I'm actually at Gophercon right now, if anyone wants to hack on Cobra at the community day on Thursday to make this easier, shoot me an email (@gmail).

You can make modern CLI tools today with great discoverability, there are a couple of great frameworks that makes this possible like Click[1] for Python or cobra[2] for Go. [1] http://click.pocoo.org/6/ [2] https://github.com/spf13/cobra

This is written in Go. I'm not sure this uses cobra, but you could start easily by writing basic CLI tools using cobra[0] [0] - https://github.com/spf13/cobra