Go is a particularly good language for CLI's I have found. At least compared to Java/C#/Python.
It's reasonably fast, compiles down to a simple to distribute binary, and the language is forgiving enough that you can do exploratory programming in it. Go-routines make it especially easy to deal with network calls in it as well. For anything that needs absolute performance though look elsewhere, but even then Go might be a good choice for prototyping.
I actually started learning Go with CLI applications. I have found that https://github.com/spf13/cobra tends to be one of the better CLI helpers you can get into but https://github.com/jpillora/opts is one I have been meaning to try following a presentation I saw on it once.
It's reasonably fast, compiles down to a simple to distribute binary, and the language is forgiving enough that you can do exploratory programming in it. Go-routines make it especially easy to deal with network calls in it as well. For anything that needs absolute performance though look elsewhere, but even then Go might be a good choice for prototyping.
I actually started learning Go with CLI applications. I have found that https://github.com/spf13/cobra tends to be one of the better CLI helpers you can get into but https://github.com/jpillora/opts is one I have been meaning to try following a presentation I saw on it once.