echo "creating tmpfile"
head -c 60000000 /dev/zero >tmpfile
echo "tmpfile creation done"
echo "starting 4 find processes"
find /usr >/dev/null 2>/dev/null &
sleep 2
find /home >/dev/null 2>/dev/null &
sleep 2
find /usr >/dev/null 2>/dev/null &
sleep 2
find /home >/dev/null 2>/dev/null &
sleep 2
echo "find processes started"
echo "copying tmpfile to tmpfile2"
cp tmpfile tmpfile2
echo "copying tmpfile and tmpfile2 to /dev/null"
cat tmpfile tmpfile2 >/dev/null
echo "copy done"
killall find

