gistfile1.txt

If you get this trying to install vim on your seemingly "up to date" xubuntu or ubuntu desktop ..

"Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_quantal_main_source_Sources  Hash Sum mismatch"

the below will rebuild the cache and let you install vim 

   cd /var/lib/apt
   sudo mv lists lists.old
   sudo mkdir -p lists/partial
   sudo apt-get update
   sudo apt-get install vim -y