Update scaling-governor.sh

revert the revert

misc/scaling-governor.sh

@@ -22,11 +22,11 @@ echo -e "
 "
 }
 show_menu() {
-    CL=`echo "\033[m"`
+    CL=$(echo "\033[m")
-    GN=`echo "\033[32m"`
+    GN=$(echo "\033[32m")
-    BL=`echo "\033[36m"`
+    BL=$(echo "\033[36m")
-    YW=`echo "\033[33m"`
+    YW=$(echo "\033[33m")
-    fgred=`echo "\033[31m"`
+    fgred=$(echo "\033[31m")
     header_info
     CK=$(uname -r)
     IP=$(hostname -I)
@@ -57,42 +57,50 @@ header_info
 }
 clear
 show_menu
-while [ $opt != '' ]
+while [ $opt != '' ]; do
-    do
     if [ $opt = '' ]; then
-      exit;
+        exit
     else
         case $opt in
-        1) echo "conservative" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+        1)
+            echo "conservative" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
             clear
             show_menu
             ;;
-        2) echo "ondemand" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+        2)
+            echo "ondemand" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
             clear
             show_menu
             ;;
-        3) echo "userspace" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+        3)
+            echo "userspace" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
             clear
             show_menu
             ;;
-        4) echo "powersave" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+        4)
+            echo "powersave" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
             clear
             show_menu
             ;;
-        5) echo "performance" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+        5)
+            echo "performance" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
             clear
             show_menu
             ;;
-        6) echo "schedutil" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+        6)
+            echo "schedutil" | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
             clear
             show_menu
             ;;
-        x)exit;
+        x)
+            exit
             ;;
-        \n)exit;
+        \n)
+            exit
             ;;
-        *)clear;
+        *)
-            show_menu;
+            clear
+            show_menu
             ;;
         esac
     fi