Delete merged branches

Deletes all local merged branches.

• Use git branch --merged <branch> to list all branches merged into <branch>.
• Use the pipe operator (|) to pipe the output and grep -v "(^\*|<branch>)" to exclude the current and the target <branch>.
• Use the pipe operator (|) to pipe the output and xargs git branch -d to delete all of the found branches.

git branch --merged <branch> | grep -v "(^\*|<branch>)" | xargs git branch -d

git checkout master
git branch
# master
# patch-1
# patch-2

# Assuming `patch-1` is merged into master
git branch --merged master | grep -v "(^\*|master)" | xargs git branch -d

git branch
# master
# patch-2