cronning rsync

[Jos Backus]

On Thu, Jun 20, 2002 at 03:03:53PM +0100, matthew.2.burgess at bt.com wrote:
> ps -ef | grep 'rsync' | grep -v 'grep rsync' | grep -v 'rsync.sh' >
> /dev/null
> 
> if [ $? -eq 1 ]; then #rsync isn't running - let's launch it now
>  rsync [opts] user at host::/module/* .
> else
>   echo "Rsync is still running...please wait and try again later"
> fi

Note that this approach inherently suffers from a race condition: what if
rsync was started right after running the ps? Adrian's setlock idea avoids
this cleanly.

-- 
Jos Backus                 _/  _/_/_/        Santa Clara, CA
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