[App_rpt-users] astdn.sh from crontab

I would like to sync the clock of my node every once in a while (like once a week) To do this I am using: ntpd -q I found that this kills one of my fobs (stops updating) So - I thought that I would just stop asterisk, do the time sync and start Asterisk again. I run this script from crontab /usr/local/bin/astdn.sh /usr/sbin/ntpd -q /usr/local/bin/astup.sh But when it gets to line 6 of astdn.sh (service asterisk stop) it throws an error and does not really stop Asterisk. So it kills the fob. I am thinking this error has something to with the environment that crontab runs things in . how to fix? Tnx Ken