How can I make Sublime Text the default editor for Git?

You can use this command on Mac and Linux:

git config --global core.editor "subl -n -w"

For Mac & Sublime Text 3:

If git config --global core.editor "subl -n -w" doesn't work, use this git config command:

$ git config --global core.editor "'/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl' -n -w"

Note: it does not contain escaping backslashes.

Windows

Sublime Text 2 (Build 2181)

The latest Build 2181 just added support for the -w (wait) command line argument. The following configuration will allow ST2 to work as your default git editor on Windows. This will allow git to open ST2 for commit messages and such.

git config --global core.editor "'c:/program files/sublime text 2/sublime_text.exe' -w"

Sublime Text 3 (Build 3065)

Sublime Text 3 (Build 3065) added the subl.exe command line helper. Use subl.exe -h for the options available to you. I have hot_exit: true and remember_open_files: true set in my Sublime Text user settings. I have found the following to git config to work well for me.

git config --global core.editor "'c:/program files/sublime text 3/subl.exe' -w"

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Mac and Linux

Set Sublime as your editor for Git by typing the following command in the terminal:

git config --global core.editor "subl -n -w"

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With this Git config, the new tab is opened in my editor. I edit my commit message, save the tab (Ctrl+S) and close it (Ctrl+W).

Git will wait until the tab is closed to continue its work.