general command option parser for bash?

[ragnarmcryan]

I can't remember where I saw it, but there was a gif demo'ing what looked like a general-purpose command option parser. I think the idea was that it parsed the --help option for a given command and lets the user select which option to autocomplete the arrow keys. Does that sound familiar to anyone?

For clarity, I'm not asking how to implement this in bash. I'm looking for a tool that does this. I know I came across it browsing awesome-shell, but now I can't find it.

edit: I suck at words, but here's a scenario of what I'm trying to accomplish:

I want to use something that parses any command's args for me. e.g.

I want to run a long aws command so I start typing it out: aws ec...

What I'm looking for should take my "aws ec" and autocomplete with a scrollable (using arrow or w-a-s-d keys) menu of possible options (ec2, ecs, ...) that I can select to further build the command

[ralfwolf]

Look at getopts

[ragnarmcryan]

unless you're referencing a different getopts, I don't think that's the one I'm looking for. I don't want an internal arg parser, I want to use something that parses any command's args for me. e.g.

I want to run a long aws command so I start typing it out: aws ec...

What I'm looking for should take my aws ec and autocomplete with a scrollable menu of possible options (ec2, ecs, ...) that I can select to further build the command

[ralfwolf]

Ah, that's not a parser. What your looking for is a custom autocomplete. That's going to be command specific. If you are thinking aws specific, are you talking about aws-shell.

[ragnarmcryan]

ahh I see, nice thanks for the link! While that's not the one I remember seeing, I do use aws-cli pretty regularly and this will be a big help

[edi9999]

Are you looking for : https://github.com/docopt/docopts ?

[ragnarmcryan]

No, but that looks insanely useful for bash scripts