On Fri, Jul 20, 2001 at 02:55:29PM +1000, Ian Perry wrote: > What I need to do is to check the second channel of an ISDN link to ensure > that it is always up. > I have a script running in CRON every minute. This came as part of the > utilities with the ISDN card. One minute is not so much of a problem. I > was just curious. >
Hmm, What I'd do is create a script that will run an external command every $1 seconds for one minute, then have crond reference to that script with the normal command after that Something like: count=0 interval="$1" maxtime=60 total=$(( $maxtime / $interval )) shift while [ $count -le $total ]; do count=$(( $count + 1 )) $@ done Or something like that. I've never tried executing $@ before, so if that's wrong, someone please correct me... Mike