TCL_FILE=ex_carj.tcl
TRACE_FILE=out.tr
RES_AWK_FILE=ex_delay.awk
RESULT_FILE=ex_carj.out

for LAYOUT in chain para
do
   for RATE in 06 18 36 54
   do
   	for SPEED in 0 1 2 5 10 20
	do
		OPTION="$RATE $LAYOUT $SPEED"
		echo $OPTION ...... 
		echo $OPTION ...... >> $RESULT_FILE
		ns $TCL_FILE $OPTION
		awk -f $RES_AWK_FILE $TRACE_FILE >> $RESULT_FILE
	done
    done
done