On Thu, 2 May 2002, at 9:40am, Alex Hewitt USG wrote:
> Imagine if the OS were smart enough to recognize that you were copying to
> /dev/null and would simply optimize that operation out of existence!

  GNU tar does this.  Seriously.  If checks to see if the target device is
/dev/null, and if so, skips some of the I/O operations.  I discovered this
when I wanted to exercise a disk, so I tried tar'ing it up to /dev/null, and
what should have taken minutes completed in seconds!  :-)

-- 
Ben Scott <[EMAIL PROTECTED]>
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