Git Error: Unable to Unlink Old <FILE> -- Permission Denied
A branch management error that can seemingly come out of nowhere. Don't worry, there's an easy fix for this one. The key may be in understanding the real power of Sudo in Linux.
TL;DR -- check file permissions; on Linux?--maybe don't use Sudo with Git!
This error is almost definitely a permissions issue. In my case, outlined herein, the problem stemmed from a blatant abuse of sudo. Let's break it all down.