Rename a git branch both local and remote

Check on which branch you are:

git branch --show-current

Checkout to the branch you want to rename and rename:

git checkout branch_to_rename
git branch -m new_name

Push the changes:

git push -u origin :old_name new_name

Why ”:“?

• :old_name means delete the branch named old_name from the remote. You’re specifying that there is no local source for old_name, so Git interprets this as a deletion request.
• new_name (without the colon) means push the local branch named new_name and create/update a remote branch with the same name new_name.