how to open only removable drivers

atm i have made a rule to watch the Volumes folder which in case of newly added disk it should open that disk with finder.

the only issue is that the HDD disks are being recognized in finder as Local Volume and the usb disk as Removable and i cant find this type under kind in hazel, i can only find volume which treats any disk under volumes as one.

so is there a way to have a rule that only opens usb disks when they are attached ?

I don't think there is a Spotlight field for this. You'll have to use a script. The "diskutil" program may be of some use here.

thanx for ur response, is there a link or a guide u can direct me to ?

You can search the help for information on how to integrate shell scripts into Hazel but writing shell scripts in general is a whole other thing. You'll have to search around for guides on how to do that.

You can also find out more about the "diskutil" by doing "man diskutil" in Terminal.