[OpenVZ] Useful one-liner

List containers sorted by CPU usage:

# vzlist -o ctid,name,laverage

List containers sorted by TCP sender buffer usage:

# vzlist -H -o ctid,name,tcpsndbuf | sort -r -n -k3

List containers sorted by TCP receive buffer usage:

# vzlist -H -o ctid,name,tcprcvbuf | sort -r -n -k3

List containers sorted by overall resources consumption:

for i in `vzlist -H -o veid`;do echo $i; vzcalc $i; echo "========"; done;

Add a new network interface to a container:

# vzctl set <id> --netif_add eth0 --save