Rotate screen every 15 minutes (for 2 hours)

screenrotate.sh

#!/bin/sh
#
# to fix:
# xrandr | grep \ connected | cut -f1 -d\ | xargs -I{} xrandr --output {} --rotate normal
times=2
delay=900
for y in `seq 1 $times`; do
  for x in right inverted left normal; do
    sleep $delay
    xrandr | grep \ connected | cut -f1 -d\ | xargs -I{} xrandr --output {} --rotate $x
  done
done