I am using
dd to do a network transfer of a disk image to an sd card on my BeagleBone.
pkill -USR1 -n -x dd in an ssh connection to this BeagleBone gives me a status update of the transfer process, which is great. I am just curious how it is actually working so I can use it effectively in the future.
man pkill it still didn't totally explain how
pkill -USR1 -n -x dd is working to give me this very useful status update.