#!/bin/bash
gawk '
    /^MemFree:/ {
        mfg=$2/1024^2
	mfm=$2/1024
    } END {
        if (mfg > 2) { printf("%.1f GB", mfg) }
 	else { printf( "%.0f MB", mfm ) }
        print("\n")
        if (mfg > 4) { print("#04B431\n") }
	else if (mfg > 2) { print("#FFA500\n") }
	else { print("#FF0000\n") }
    }' /proc/meminfo