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Old 03-09-2012, 09:32 AM   #8
mbovenka
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Quote:
Originally Posted by knc1 View Post
*nix trivia:
"copy device" goes by the name 'dd' because the name 'cd' was already in use for a recognized purpose when "copy device" was written. So author just bump'd the first letter of the name one character.
I always heard it came from the IBM JCL 'DD' (Data Description) statement; that's why dd's syntax is so odd, compared to other Unix/Linux commands.

Having worked with JCL in my sordid past, I think it's rather likely; the syntax is certainly similar.
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