On , I learnt ...

How to perform a non-interactive, interactive Git rebase

If you create a load of fix-up commits using:

git commit --fixup $COMMIT_HASH

then you don’t necessarily want to run git rebase in interactive mode to fold these commits into the branch history.

The --autosquash option is sufficient as it re-orders the rebase todo list to squash the fix-up commits into their biological parents.

In such cases, opening and closing an editor is a waste of time.

Instead, use the GIT_SEQUENCE_EDITOR environment variable to specify a non-interactive no-op “editor” like true (or even merely :). E.g.

GIT_SEQUENCE_EDITOR=true git rebase --autosquash -i origin/master

This will fold the fix-up commits into your branch history in one command.

Source

Tip found in this StackOverflow answer and this Reddit thread