fix_undo_telemetry.sh

# mobile.events.data.microsoft.com
# vortex.data.microsoft.com
TELEMETRY_URLS="[^/]+\.data\.microsoft\.com"
REPLACEMENT="s/${TELEMETRY_URLS}/0\.0\.0\.0/g"

debug() {
  d1=`perl -MTime::HiRes=time -e 'printf "%.5f\n", time'`

  sed -i -E "${REPLACEMENT}" ${1}

  d2=`perl -MTime::HiRes=time -e 'printf "%.5f\n", time'`

  echo "found: ${1} ($( du -h ${1} | cut -f1 )) $( echo "($d2 - $d1) * 1000" | bc )ms"
}

export -f debug

d1=`perl -MTime::HiRes=time -e 'printf "%.5f\n", time'`
grep -rl --exclude-dir=.git -E "${TELEMETRY_URLS}" . | xargs -I {} bash -c 'debug "$@"' _ {}
d2=`perl -MTime::HiRes=time -e 'printf "%.5f\n", time'`

echo "undo_telemetry: $( echo "$d2 - $d1" | bc )s"