A simple XQuartz uninstall script

uninstall_xquartz.sh

#!/usr/bin/env bash

set -e

[[ $USER == "root" ]] || {
  echo "You must be root to run this script." >&2
  exit 1
}

echo "Unload launchd daemons and agents..."

[[ -e /Library/LaunchDaemons/org.macosforge.xquartz.privileged_startx.plist ]] && \
  launchctl unload -w /Library/LaunchDaemons/org.macosforge.xquartz.privileged_startx.plist

[[ -e /Library/LaunchAgents/org.macosforge.xquartz.startx.plist ]] && \
  launchctl unload -w /Library/LaunchAgents/org.macosforge.xquartz.startx.plist

echo "Remove installed files..."

rm -rf /opt/X11
rm -rf /Applications/Utilities/XQuartz.app
rm -f /Library/LaunchDaemons/org.macosforge.xquartz.privileged_startx.plist
rm -f /Library/LaunchAgents/org.macosforge.xquartz.startx.plist
rm -f /private/etc/manpaths.d/40-XQuartz
rm -f /private/etc/paths.d/40-XQuartz

# This may be by `/usr/libexec/x11-select`.
# Symbolic links in `/usr` are SIP protected and by default exist.
rm -f /private/var/select/X11

echo "Please check your /etc/ssh/sshd_config and /etc/ssh/ssh_config and remove any unnecessary XAuthLocation configuration."
echo "There are extra lines added by installer at the very end of each file."