#!/bin/bash
gawk '
    /^MemAvailable:/ {
        mfg=$2/1024^2
	    mfm=$2/1024
    }
    END {
        if (mfg > 2) {
            printf("%.1f GB", mfg)
        } else {
            printf("%.0f MB", mfm)
        }
        print("\n")
        if (mfg > 20) {
             print("#04B431\n")
         } else if (mfg > 4) {
             print("#A8FF00\n")
         } else if (mfg > 3) {
             print("#FFF600\n")
         } else if (mfg > 2) {
             print("#FFAE00\n")
         } else if (mfg > 1) {
             print("#FF0000\n")
         } else {
             exit 33
         } 
    }
' /proc/meminfo