Uninstall things you installed with a pkg on Mac

uninstallpkg

#!/bin/bash

# Uninstall things you installed with a pkg on Mac
# Tested on El Capitan
# Please run this at your own risk
# Read: http://superuser.com/questions/36567/how-do-i-uninstall-any-apple-pkg-package-file

if [ "$EUID" -ne 0 ]
then
  echo "Please run as root"
  exit
fi

if [ "$#" -ne 1 ]; then 
    echo "Give me a pkg name. Hint: cat /Library/Receipts/InstallHistory.plist"
    exit
fi

root=$(pkgutil --pkg-info $1 | grep location | cut -f 2 -d ' ')

if [[ $root = "" ]]
then
  echo "Could not find package."
  echo "Looking for the package name? Try cat /Library/Receipts/InstallHistory.plist"
  exit
fi

echo "Package is insetalled at " $root

pushd /$root
echo "Files:"
pkgutil --only-files --files $1
echo
echo "Dirs:"
pkgutil --only-dirs --files $1

echo

read -r -p "Are you sure to uninstall? [y/N] " response
if [[ $response =~ ^([yY][eE][sS]|[yY])$ ]]
then
  pkgutil --only-files --files $1 | tr '\n' '\0' | xargs -n 1 -0 sudo rm -if
  pkgutil --only-dirs --files $1  |  tail -r | tr '\n' '\0' | xargs -n 1 -0 sudo rmdir
  pkgutil --forget $1
  echo "Uninstalled " $1
else
  echo "Package is not uninstalled."
fi

popd