This tool is a more intelligent version of the default update-usbids command.
It uses the ETag header sent by the USB ID list server http://www.linux-usb.org to check if we already have the most up to date list.
./update-usbids.sh
The following optional parameters are available:
-q Quiet. Prevent any output.
-f Force. Don't check if the list has been updated, download it anyway.