the dd on my machine (from the gnu coreutils 8.24) does just that with the 'status=progress' option. dd if=/dev/zero of=/dev/null status=progress 4814691328 by

the dd on my machine (from the gnu coreutils 8.24) does just that with the 'status=progress' option. dd if=/dev/zero of=/dev/null status=progress 4814691328 bytes (4,8 GB) copied, 4,000000 s, 1,2 GB It's only the size copied and the speed but it's usually enough.