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Watch the progress of 'dd'

Terminal - Watch the progress of 'dd'
dd if=/dev/zero | pv | dd of=/dev/null
2010-05-14 16:58:42
User: richard
Functions: dd
9
Watch the progress of 'dd'

Alternatives

There are 4 alternatives - vote for the best!

Terminal - Alternatives
dd if=/path/inputfile | pv | dd of=/path/outpufile
pkill -USR1 ^dd$
2010-05-14 16:25:01
User: atoponce
Tags: dd kill pkill
3

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.

dd if=/path/to/inputfile of=/path/to/outputfile & pid=$! && sleep X && while kill -USR1 $pid; do sleep X; done
2010-12-02 15:07:18
User: cyrusza
Functions: dd kill sleep
Tags: dd copy progress
3

Adjust "sleep X" to your needs.

*NOTE: First sleep is required because bash doesn't have a "post-test" syntax (do XXX while).

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

as cool as this is, it relies on a utility that isn't standard across platforms, and isn't installed by default on any system.

Comment by atoponce 342 weeks and 1 day ago

dd if=/dev/zero | pv > /dev/null

Comment by dash 266 weeks and 6 days ago

Your point of view

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