Paul Eggert wrote:
The Debian unstable version of "dd" also outputs a total byte count,
seconds taken, and transfer rate. This is an often-asked-for feature,
and seems useful. I installed this implementation instead, which I
wrote from scratch. The Debian version suppresses this new output if
POSIXLY_CORRECT is set, but I just checked POSIX and it allows this
behavior so I turned it on unconditionally.
In theory this change might break some scripts. Does anybody think
this will be a problem in practice? If so, I suppose we could enable
the new behavior only conditionally.
Hmm there could be "GUI copy programs" out there that use
SIGUSR1 to display a progress bar?
Personally I don't think sending SIGUSR1 is a user friendly
interface, which is what this feature is supposed to be.
So personally I would have just added a --progress option.
Then for the implementation, use alarm(1), and
print on 1 line like: fprintf (stderr, _("\r%s copied in %gs (%s/s)"),
Also possibly don't print num records {in,out}
lines if --progress specified?
P�draig.
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