Listing each branch and its last revision's date in Git

Question

I need to delete old and unmaintained branches from our remote repository. I\'m trying to find a way with which to list the remote branches by their last modified date, and

Answer 1

Or you can use my PHP script, https://gist.github.com/2780984

#!/usr/bin/env php
$output[$k]['time']) {
            echo "This branch should be deleted $line\n";
            exec("git branch -d $line");
        }
        $k++;
    }
?>