title: Detect if a block device is a local disk or a removable usb disk
body: <p>There's any way to detect if a block device, like /dev/sda or /dev/sdc, is related to a local disk (scsi or sata I mean) or to a removable USB disk?</p>
  
  <p>I'm writing a shell script that have to detect ONLY local disks block devices, excluding any removable disks.</p>
  
  <p>Thanks!</p>