dd 2 output files simultaneously, is it possible?

kav · 07-28-2007, 12:58 PM

I didn't see anything in the man pages that would indicate that it could, but it seems like you should be able to.

could I just say:
dd bs=512 if=/dev/sda of=/dev/sdb of=/dev/sdc

or would it be more like:
dd bs=512 if=/dev/sda of=/dev/sdb,/dev/sdc

Or is it just plain impossible?

jiml8 · 07-28-2007, 02:39 PM

Why not just try it? Presuming you are willing to overwrite sdb and sdc then it can't really hurt anything. Worst it can do is return an error. In fact, I will bet it does just that.