pv – monitor the progress of data through a pipe

Today I found a very useful tool. You can monitor the bandwidth of a pipe. For example you copy your raspbian image to the raspberry pi sd card, you can check the write speed.

NAME: pv – monitor the progress of data through a pipe

INSTALL (WITH APT): sudo apt-get install pv

EXAMPLE: dd if=/dev/zero | pv | dd of=/dev/null

OUTPUT: 274MB 0:00:03 [78,6MB/s] [        <=>

WOW FACTOR: 100%