default no parameter is mode cycling

demo.sh

@@ -2,12 +2,6 @@
 
 echo -e "\nDemo of CubeSatSim at 434.9 MHz\n"
 
-y=$(last reboot | grep ^reboot | wc -l)
-echo $y
-
-if [ "$1" = "c" ]; then
-    echo "Mode cycling"
-
 sudo systemctl restart rpitx
 
 if [ "$1" = "a" ]; then
@@ -19,7 +13,11 @@ elif [ "$1" = "b" ]; then
 elif [ "$1" = "s" ]; then
    	echo "Mode is continuous SSTV"  
     	while true; do sleep 5; done
-else 
-    	echo "Mode is continuous FSK"
-    	/home/pi/CubeSatSim/radioafsk fsk
+else [ "$1" = "f" ]; then
+    echo "Mode is continuous FSK"
+    /home/pi/CubeSatSim/radioafsk fsk
+else
+    echo "Mode cycling"
+    y=$(last reboot | grep ^reboot | wc -l)
+    echo $y
 fi