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lchlebikova

12-16-2012 04:22 AM

How to find the nineteenth byte and find its original value

How to find the nineteenth byte? I downloaded a file from the internet (xxx.r) and I need to find the nineteenth byte and then write its original value. It can be any file, just need to find the right command.
Thanx for help!

colucix

12-16-2012 04:33 AM

Hi and welcome to LinuxQuestions!

I wonder what is the purpose of this, anyway you can try the dd command (be careful if you're not experienced with it). For example:

Code:

dd if=xxx.r count=1 ibs=1 skip=18 2>/dev/null

will send the 19th byte to the standard output, so that you can store it in a variable. If you want to redirect it to a file, add the of predicate:

Code:

dd if=xxx.r of=file.out count=1 ibs=1 skip=18 2>/dev/null

Hope this helps.

lchlebikova

12-16-2012 04:36 AM

thank you a lot for your help!

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