How do I specify a command to run before I execute my backup (in this 
case tar).

I need to rsh to a specific machine and create a snapshot before I backup.

I tried:

$Conf{TarClientCmd} = 'rsh -n mothership snap create data backuppc; 
$tarPath --totals -c -v -f - -C $shareName/.snapshot/backuppc; rsh -n 
mothership snap delete data backuppc';

but this seems to not work.

I've put this into it's own script, and it works fine, although there 
was a very strange stale NFS filehandle issue I had to workaround...

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