# Delete all local branches, except string/exact name
# Tip: if an exact branch name to save is needed, append $
git branch | grep -v "{BRANCH_NAME_TO_EXLCUDE}" | xargs git branch -D

# Delete all remote branches, except string/exact name
git branch -r | grep {REMOTE_NAME]}/ | grep -v '{BRANCH_NAME_TO_EXLCUDE}' | grep -v HEAD| cut -c {REMOTE_NAME_LENGTH+3}- | while read line; do git push {REMOTE_NAME} :$line; done;

# Sync with remote and prune all stale references
git fetch -p