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anonymous

Raspberry Links (from Rafa) - 1 views

started by anonymous on 15 Jan 13 no follow-up yet
Maluvia Haseltine

Is dd better than cat? - Stack Overflow - 6 views

stackoverflow.com/...is-dd-better-than-cat

Linux CLI

shared by Maluvia Haseltine on 15 Aug 10 - Cached
  • fubar'd
  • 'cat' only knew
  • about character I/O
  • ...6 more annotations...
  • dd' was needed to interact with the block devices,
  • 0 down vote You want to use dd so that you can specify things like bsize
  • tuning this to some multiple of 4k is going to be much faster than cat
  • dd has a number of useful extra features for more complex data copies
  • 2 down vote If I remember correctly, dd is much more "low level" in is approach, skipping such fancy things as filesystems and all the bells and whistles :)
  • dd is problematic in the presence of disk errors, and can hang or more importantly ignore non readable data
  • Maluvia Haseltine on 15 Aug 10
     
    Fascinating discussion over at Stack Overflow. Elucidates some of the subtle differences between dd and cat, and when and why you might want to use one over the other.
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