extract resources per OpenVZ running container

getvzres.sh

#!/bin/bash
if [[ -f "/usr/sbin/vzlist" ]]; then
	vzlist -a | awk '/^\s+[0-9]/ { print $1" "$5 }' | while read ct_id ct_host; do
		echo -ne "${ct_host}\t";
		vzctl runscript ${ct_id} $0
	done
else
	CPU=$(awk '/processor/ { cpu+=1 }; END { print cpu }' /proc/cpuinfo);
	MEM=$(awk '/^MemTotal:/ { print $2/(1024*1024) }' /proc/meminfo);
	DISK=$(df -k | awk '!/^tmp/ && !/^Filesystem/  {mp[$1"-"$2"-"$3]=$3 }; END {for (key in mp){ size+=mp[key]}; print size/(1024*1024)}');
	echo -ne "lxc\t${CPU}\t${MEM}\t${DISK}\r\n"
fi