How to check the progress of dd

August 23, 2008

You probably know this, and if you didn’t you should have read the man page before coming here, but:
kill -USR1 $pid
(with $pid being the pid of a running dd process – which you can get from ps) will cause dd to pause, print out progress statistics, and resume copying. Awesome.
(It outputs in the terminal where dd is running, not where you enter the kill. Just in case you’re looking.)

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