cynchronised sleep capbilty..

[Doug Rabson]

On Wednesday 02 February 2005 17:44, Julian Elischer wrote:
> very clever!
>
> however it doesn't phaselock to teh time and still drifts.
> I need to trigger on (for example) 10 second boundaries across 50
> synchronised machines..
> (so thatthe machines agree about the sampling period.)

How about a cron job which writes characters into a fifo every ten 
secconds. The script can wait for the next ten second mark by reading a 
single char from the other end of the fifo.