case "${ACTION:-ifup}" in ifup) ps | grep -v 'grep' | grep -v '20-ntpd' | grep -q 'ntpd' || { route -n 2>/dev/null | grep -q '^0.0.0.0' && { /etc/init.d/ntpd enabled && /etc/init.d/ntpd start 2>/dev/null >/dev/null } } ;; ifdown) route -n 2>/dev/null | grep -q '^0.0.0.0' || /etc/init.d/ntpd stop 2>/dev/null >/dev/null ;; esac