Hi Eric,
That explained it, thanks a lot for your help!
Best,
Manhong
On Thu, 2010-05-27 at 16:52 -0600, Eric Blake wrote:
> On 05/27/2010 02:30 PM, daimh wrote:
> > Hi,
> >
> >
> > echo -e "3\n\n0"|sort -un
>
> 'echo -e' is inherently non-portable; you should get in the habit of
> using printf(1) instead.
>
> >
> >
> > 0 is missing from output, is this a possible bug?
>
> Thanks for the report. However, I don't think it is a bug. The empty
> line, when forced to take on a numeric value, is equivalent to 0. And
> since you specified unique entries only, sort only printed the empty
> line (the first of the two matching lines that it encountered).
>
