#!/bin/awk -f
# memu - print memory usage 

BEGIN {
    while (getline < "/proc/meminfo") {
        if ($1 == "MemTotal:")  t=$2;
        if ($1 == "MemAvailable:") {
            printf "%.1fG/%.1fG\n", (t-$2)/1000000, t/1000000;
            exit;
        }
    }
}