Check Load average with OpenVZ

#!/bin/bash

# This script checks the load average for the vps and reboot it if any of the vps load average goes higher than 7

load=`/usr/sbin/vzlist -o veid,laverage | /bin/sort -nrk 2 | awk '{ print $2 }' | cut -d / -f 1 | /usr/bin/head -1 | awk '{ print $1 }' | cut -d . -f 1`
if [ "$load" -gt "7" ]
then
line=`/usr/sbin/vzlist -o veid,laverage | /bin/sort -nrk 2 | /usr/bin/head -1 | awk '{ print $1 }'`
/usr/sbin/vzctl restart $line 2>/dev/null 1>&2
mail -s "The VPS $line has been rebooted due to the high load on the server $HOSTNAME"    alert@domain.com
fi