Although it is not the purpose shred is supposed to serve, it comes close. 
Often it would be nice to be able to test low-level media thoroughly, before
shipping them or putting them into production. 

shred could easily be adapted into read()ing after write()ing so the data
is verified; since it randomized input, a hard disk could be thoroughly 
tested. 

I'm writing a patch for shred with the --verify option, so that data is
also read, and shred bails out if there is a read() or write() error. Would
such an addition be welcomed? 


Sean


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