sample script
okFile=okay.ok
bFlagFound=false
waitCounter=0
while [ "$bFlagFound" = "false" ]; do
if [ -e $okFile ];
then
bFlagFound=true
else
sleep 60
waitCounter=$(($waitCounter + 1))
if [ $waitCounter -gt 60 ]; then
echo "$okFile flag not found, after waiting 60 minutes"
exit
1
fi
fi
done
echo "task 1"
echo "task 2"
