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Old 02-21-2012, 06:58 PM   #1
mreff555
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dd and sed


is there a way to pipe dd and sed together?

I know it sounds completely useless, but can I search a location such a /dev/random for characters, manipulate them with sed and save them to a file?
 
Old 02-21-2012, 07:14 PM   #2
uhelp
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What are you __really__ trying to do?

Of course you can read from /dev/random and then manipulate the output.
cat /dev/random | doWhatEverYouLike
 
Old 02-22-2012, 12:23 AM   #3
rknichols
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The dd utility works just fine with pipes. If you don't specify an output destination ("of=xxxx") it writes to stdout. Similarly, if you don't specify the input source ("if=xxxx") it reads from stdin. Here's a reasonably useless example:
Code:
dd if=/dev/urandom bs=256 count=1 | sed -e 's/X/****X****/g' >some_file
 
  


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