How to remove a directory from git repository?

To remove folder/directory only from git repository and not from the local try 3 simple commands.

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Steps to remove directory

git rm -r --cached FolderName
git commit -m "Removed folder from repository"
git push origin master

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Steps to ignore that folder in next commits

To ignore that folder from next commits make one file in root folder (main project directory where the git is initialized) named .gitignore and put that folder name into it. You can ignore as many files/folders as you want

.gitignore file will look like this

/FolderName

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Remove directory from Git and local

Checkout 'master' with both directories:

git rm -r one-of-the-directories // This deletes from filesystem
git commit . -m "Remove duplicated directory"
git push origin <your-git-branch> (typically 'master', but not always)

Remove directory from Git but NOT local

To remove this directory from Git, but not delete it entirely from the filesystem (local):

git rm -r --cached myFolder