shellscript conditional to check for external disk

[Wojciech Puchar]

> Hello List,
>
> I need to write a backup script, and one of the required actions would be a
> copy of the backup to an external firewire drive. I would like to make this
> as easy as possible for the local staff, so i'd like to check whether the
> drive is attached, if necessary mount it, copy over the backup  and unmount
> it again, so that the local staff can swap the external disks when they're
> not used.
>
> Is there a canonical way to achieve what i want? I played with the idea of
> simply checking for /dev/da0s1d's existance, but that won't disappear on
> disconnect,

won't disappear on disconnect? strange.


you may add something to devd.conf - so your script will be started on 
attach.