get /sys path from lsusb

usb2sys.sh

#!/bin/bash
#
# usb2sys - find lsusb device in /sys file system
#
# Modified script from https://serverfault.com/a/984649

usb_devices=($(lsusb | cut -d ' ' -f 6))

for usb_device in "${usb_devices[@]}"
do
    vendor=${usb_device%:*}
    product=${usb_device##*:}

    sys=/sys/bus/usb/devices/
    cd $sys

    for d in *; do
        path=$sys$d
        if [ -f $path/idProduct ]; then
          prod=$( cat $path/idProduct )
          vend=$( cat $path/idVendor )

          if [ $prod = $product -a $vend = $vendor ]; then
            echo vend = $vend
            echo prod = $prod
            echo /sys device is $path
            echo
          fi
        fi
    done
done