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send DD a signal to print its progress

Terminal - send DD a signal to print its progress
while :;do killall -USR1 dd;sleep 1;done
2010-04-07 09:23:31
User: oernii2
Functions: killall
send DD a signal to print its progress

every 1sec sends DD the USR1 signal which causes DD to print its progress.


There are 5 alternatives - vote for the best!

Terminal - Alternatives
watch -n 1 pkill -USR1 "^dd$"
2012-08-31 05:15:45
Functions: watch
Tags: dd progress speed

Sends the "USR1" signal every 1 second (-n 1) to a process called exactly "dd".

The signal in some systems can be INFO or SIGINFO ...

look at the signals list in: man kill

Know a better way?

If you can do better, submit your command here.

What others think

On BSD systems the signal to send is SIGINFO (in place of SIGUSR1). This is the signal generated when you press Ctrl-T. When the Gnu/Linux folks copied this feature from BSD, they changed the signal to SIGUSR1 because Linux doesn't have SIGINFO.

Comment by inof 294 weeks and 3 days ago

It's better to do

while killall -USR1 dd; do sleep 1; done

because then the while loop stops if there is no dd process any more.

Comment by Superwayne 201 weeks and 4 days ago

Your point of view

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