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This question already has an answer here:

When I open up the command line and type in git, I get a bunch of completions for arguments of git, like add, commit, merge, and so on.

How do I add this kind of completion to my own apps?

So far, I've been able to specify the first level of completion like this:

$ complete -W "asd asdf" ./test.py

$ ./test.py asd
asd asdf

But it tries to keep going after that:

$ ./test.py asdf asd
asd asdf

I've tried setting a completion for the second level by running complete -W "lol" "./test.py asd", but that doesn't work.

What's the proper way to set these up? And once I've figured out all of the commands, where do I have to put them? Running a big list of these commands in .bashrc, every time a terminal is opened, doesn't seem too efficient (plus I don't want to mess with users' files if I don't have to).

merged by Seth Jun 22 '18 at 1:09

This question was merged with How to create script with auto-complete? because it is an exact duplicate of that question.

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