Update config added -V maxcpus setting

config

@@ -2231,6 +2231,48 @@ elif [ "$1" = "-K" ]; then
 		restart=1
 #	fi
 
+elif [ "$1" = "-V" ]; then
+
+	echo	
+	echo "Changing the maxcpus setting"
+	echo
+
+	CPUS=$(cat /boot/firmware/cmdline.txt| grep -oP 'maxcpus=\K\d+')
+
+	if [ -z "$param2" ] ; then
+
+		if [ "$param2" = "1" ] || [ "$param2" = "2" ] || [ "$param2" = "3" ] 
+
+			sudo sed -i 's/maxcpus=$CPUS/maxcpus=$param2/g'
+			echo "Setting maxcpus="$param2
+
+		else
+
+			echo "invalid maxcpus value"
+
+	else
+
+		echo "Current maxcpus="$CPUs
+		echo
+		echo "How many CPUs do you want to set (1-3) ?"
+		echo "Return keeps current value."
+		echo "0 removes any maxcpus setting"
+
+		read NEWCPU
+
+		if [ $NEWCPU = "" ]
+			echo "No change to maxcpus"
+		if [ $NEWCPU = "0" ]
+			sudo sed -i 's/maxcpus=$CPUS//g'
+			echo "Removing maxcpus setting"
+		elif [ $NEWCPU = "1" ] || [ $NEWCPU = "2" ] || [ $NEWCPU = "3" ] |
+			sudo sed -i 's/maxcpus=$CPUS/maxcpus=$NEWCPU/g'
+			echo "Setting maxcpus="$NEWCPU	
+		else
+			echo "Invalid maxcpus setting. No change made."
+		fi
+	fi
+				
 elif [ "$1" = "-h" ]; then
 
 	echo "config OPTION"
@@ -2278,6 +2320,7 @@ elif [ "$1" = "-h" ]; then
 	echo "   -u     Change gpsd state"
 	echo "   -k     Reset the PacSatSim Configuration"
 	echo "   -K     Change the Doppler frequency shift setting"
+	echo "   -V     Set the maximum CPUs"
 
 	echo
 	exit