Update scripts

scripts/cpu

@@ -1,6 +1,12 @@
 #!/bin/sh
 # Script to display CPU usage
 
+RED="\e[31m"
+GREEN="\e[32m"
+YELLOW="\e[33m"
+CYAN="\e[36m"
+ENDCOLOR="\e[0m"
+
 # Cache in tmpfs to improve speed and reduce SSD load
 cache=/tmp/cpu-script-cache
 rm /tmp/cpu-script-cache 2>/dev/null
@@ -8,21 +14,30 @@ while true; do
     sleep 1
     cpu_stats=$(awk '/^cpu / {print $2 + $3 + $4 + $5, $5}' /proc/stat)
     if [ ! -f "$cache" ]; then
-        printf "   ---%%   \r"
+        echo -n "   ${CYAN}--%${ENDCOLOR}   \r"
         echo "$cpu_stats" >"$cache"
         continue
     fi
     prev_stats=$(cat "$cache")
-    echo "$cpu_stats $prev_stats" | awk '{
-    total_diff = $1 - $3
-    idle_diff = $2 - $4
-    if (total_diff == 0) {
-        usage = 0
-    } else {
-        usage = 100 * (1 - idle_diff / total_diff)
-    }
-    printf "   %.1f%%   \r", usage
-    exit
-}'
+    total=$(echo "$prev_stats" | awk '{print $1}')
+    prev_idle=$(echo "$prev_stats" | awk '{print $2}')
+    curr_total=$(echo "$cpu_stats" | awk '{print $1}')
+    curr_idle=$(echo "$cpu_stats" | awk '{print $2}')
+    total_diff=$((curr_total - total))
+    idle_diff=$((curr_idle - prev_idle))
+
+    if [ "$total_diff" -eq 0 ]; then
+        usage=0 # Avoid division by zero
+    else
+        usage=$((100 * (total_diff - idle_diff) / total_diff))
+    fi
+
+    if [ "$usage" -lt 50 ]; then
+        echo -n "   ${GREEN}${usage}%${ENDCOLOR}   \r"
+    elif [ "$usage" -lt 70 ]; then
+        echo -n "   ${YELLOW}${usage}%${ENDCOLOR}   \r"
+    else
+        echo -n "   ${RED}${usage}%${ENDCOLOR}   \r"
+    fi
     echo "$cpu_stats" >"$cache"
 done