#!/bin/bash

awk '
$1 == "Node" {
	thisnode = $2 + 0
	thiszone = $4
	allnodes[thisnode] = thisnode
	znames[thiszone] = 1
}
$1 == "pages" && $2 == "free" {
	nfree[thisnode "," thiszone] = $3
}
END {
	printf("Node ")
	for (z in znames)
		printf("%15s ", z)
	printf("\n")

	for (n in allnodes) {
		printf("%4d ", n)
		for (z in znames) {
			idx = n "," z
			if (idx in nfree)
				printf("%15.2f ", nfree[idx]/256.0)
			else
				printf("%15s ", "")
		}
		printf("\n")
	}
}' /proc/zoneinfo