Get the actual transfer speed of a device

stty

  • Set options for a terminal device interface.
    More information: <https://www.gnu.org/software/coreutils/stty>.
  • Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

stty --file {{path/to/device_file}} speed

click the source code to copy install stty on any operating system with command-not-found.com