How to add remote submodule to my github project?

Question

For example:

How do they do it?

I tried next but it just downloaded module locally (didn't appear on github):

git submodule add https://github.com/FFmpeg/FFmpeg
git submodule update --init --recursive

Answer 1

I tried next but it just downloaded module locally (didn't appear on github)

git submodule add https://github.com/FFmpeg/FFmpeg

You are missing a parameter - the path where the submodule repository will be added to the main repository.

Try:

git submodule add https://github.com/FFmpeg/FFmpeg FFmpeg

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Further Reading

• Working with submodules | The GitHub Blog
• Git Submodules: Adding, Using, Removing, Updating :: Chris Jean