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Watch the progress of 'dd'

Terminal - Watch the progress of 'dd'
pkill -USR1 ^dd$
2010-05-14 16:25:01
User: atoponce
3
Watch the progress of 'dd'

The 'dd' command doesn't provide a progress when writing data. So, sending the "USR1" signal to the process will spit out its progress as it writes data. This command is superior to others on the site, as it doesn't require you to previously know the PID of the dd command.

Alternatives

There are 2 alternatives - vote for the best!

Terminal - Alternatives
dd if=/dev/zero | pv | dd of=/dev/null
dcfldd if=/dev/zero of=/dev/null
2010-05-14 17:37:03
User: twjolson
Tags: dd kill pkill
1

dcfldd is a forensic version of dd that shows a process indicator by default.

Know a better way?

If you can do better, submit your command here.

What others think

You say its superior but you might not realize that if you're running this as root and there are other users on the system also running dd (I'll admit its not likely), then you're also going to make their dd processes print out their status, which they might not want.

The truly superior thing would be if there was a key sequence similar to Ctrl-C that would send a USR1 to the process in the fg.

Comment by deltaray 276 weeks and 6 days ago

true, but what's the likelihood of that happening? really? the only time you use 'dd' is for administrative purposes, like creating swap files, or overwriting data. any other use of dd means you're likely using the wrong utility. :)

Comment by atoponce 276 weeks and 6 days ago

Your point of view

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