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by malcolmputer 3846 days ago
> The other way to see progress on `dd` is to issue a signal 3 (USR1, iirc) to the dd process. kill -3 <dd pid>

Be careful with this on some distributions and compilations of DD. Purely anecdotal evidence, but in college I had a friend imaging a very large (5400RPM) drive and about 10 hours into the process he lamented that he wished he could see how far along it was.

I popped open a terminal, ps -A |grep dd, kill -USR1 $PID, and it just exited.

He was rather pissed that I lost him 10 hours.