FreeBSD8.x: Скрипт обновления из портов (portupgrade)

#!/usr/local/bin/bash

portupgrade="/usr/local/sbin/portupgrade"
 pkg_ver="/usr/sbin/pkg_version"

LIST=`${pkg_ver} -v | grep 'need' | awk '{print $1}'`

for pkg_name in ${LIST}
 do
 ${portupgrade} -f ${pkg_name}
 done