Update scripts

scripts/mem

@@ -1,3 +1,22 @@
-#!/bin/sh
+#!/bin/bash
 
-free --mebi | sed -n '2{p;q}' | awk '{printf (" %.1f%%\n", ($4/$2)*100)}'
+RED="\e[31m"
+GREEN="\e[32m"
+YELLOW="\e[33m"
+ENDCOLOR="\e[0m"
+
+mem_info=$(free | awk '/Mem:/ {print $2, $3}')
+read total used <<<"$mem_info"
+percent=$(awk "BEGIN {printf \"%.0f\", ($used/$total)*100}")
+
+if [ "$percent" -le 60 ]; then
+  percent_color=$GREEN
+elif [ "$percent" -le 80 ]; then
+  percent_color=$YELLOW
+else
+  percent_color=$RED
+fi
+
+mem_total=$(free -h | awk '/Mem:/ {print $2}')
+mem_used=$(free -h | awk '/Mem:/ {print $3}')
+echo -e "  ${mem_used} / ${mem_total} (${percent_color}${percent}%${ENDCOLOR})"