UNIX for Advanced & Expert Users

TOTALTIME=0
CANCELTIME= 28800 #1 day almost

cd /whatever/location/file/is
while true
do
        if [ -f whateverfile.file ]
        then
                echo whateverfile.file file found! 
                #INSERT WHATEVER YOU WANT TO DO WITH IT HERE!!!
                break
        else
                date
                echo whateverfile.file Does Not Exist Yet. Sleeping 120 seconds until whateverfile.file Found.
                sleep 120
                TOTALTIME=`expr $TOTALTIME + $SLEEPTIME`
                if [ "$TOTALTIME" -gt "$CANCELTIME" ]
                then
                        echo The file has not been found in the set amount of time.
                        echo Program Canceling.
                        echo TOTALTIME equals $TOTALTIME
                        echo QUITING
                        exit
                else
                        echo .
                fi
        fi
done