CODE EXAMPLE FOR SHELL

Git delete all branches except master

// -- Clear all branches except Master Branch --
git branch -D $(git branch | grep -v 'master')
// This will clear all your branches you have on local that you have 
// not pushed to your repository. eg: IF, you created a branch that was, 
// not pushed it will remain along with amster. 
// But the others will be cleaned.

// -- Delete a single branch
git branch -D branch-name