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SANS ISC: InfoSec Handlers Diary Blog - Internet Storm Center Diary 2018-07-07 InfoSec Handlers Diary Blog


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dd progress indicator on OSX

Published: 2018-07-07
Last Updated: 2018-07-08 00:06:46 UTC
by Didier Stevens (Version: 1)
2 comment(s)

Unfortunately, dd on OSX has no status option:

But it reacts to signals too, like dd on Linux. It's another signal however: siginfo.

And signal siginfo is coupled to key-combination CTRL-T. No need to use kill, you can just type CTRL-T in the terminal window where dd is running:

Didier Stevens
Senior handler
Microsoft MVP
blog.DidierStevens.com DidierStevensLabs.com

Keywords: dd
2 comment(s)

dd progress indicator on Linux

Published: 2018-07-07
Last Updated: 2018-07-07 00:31:25 UTC
by Didier Stevens (Version: 1)
6 comment(s)

When I have to use dd (if I can, I use dc3dd) I try to remember to include option status=progress to have a progress indicator.

Last time on a Linux machine, I forgot to include that option. Reading the man page for a solution, I found this:

I could get a progress indication, without having to restart dd with the missing status option, by sending it the sigusr1 signal (on Linux).

 

Didier Stevens
Senior handler
Microsoft MVP
blog.DidierStevens.com DidierStevensLabs.com

Keywords: dd
6 comment(s)
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