numeric sort(1) is broken on -STABLE

Ulrich Spörlein uqs at FreeBSD.org
Wed Feb 10 18:05:37 UTC 2010


On Wed, 10.02.2010 at 13:49:05 +0300, Ruslan Ermilov wrote:
> On Wed, Feb 10, 2010 at 09:58:14AM +0100, Ulrich Spörlein wrote:
> > Hi guys,
> > 
> > not sure if this is a pilot error, but it seems to me that gnu sort -n
> > is broken on at least -STABLE (couldn't test -CURRENT yet).
> > 
> > It somehow does not manifest when using a simple list and sorting on a
> > specific column, but it always happens to me when using it in
> > combination with find(1).
> > 
> > % truncate -s10m a; truncate -s5m b; truncate -s800k c
> > % find a b c -ls|sort -nk7,7
> >      8       64 -rw-r--r--    1 uqs              wheel            10485760 Feb 10 09:13 a
> >     10       64 -rw-r--r--    1 uqs              wheel             5242880 Feb 10 09:13 b
> >     12       64 -rw-r--r--    1 uqs              wheel              819200 Feb 10 09:13 c
> 
> I bet you're using some non-C locale for LC_NUMERIC.
> What does "locale" output tell you?

Yes and no. LC_NUMERIC is still at C, LC_CTYPE is set to UTF-8, but as
there are no non-ASCII symbols in that output it shouldn't matter,
right? For me, 819200 is smaller than 10485760 in pretty much all
locales. Why the hell is a numeric gnusort locale dependant? Why is -g
working anyway?

% locale
LANG=
LC_CTYPE=de_DE.UTF-8
LC_COLLATE="C"
LC_TIME="C"
LC_NUMERIC="C"
LC_MONETARY="C"
LC_MESSAGES="C"
LC_ALL=

% find a b c -ls | LC_ALL=C sort -nk7,7
    12       64 -rw-r--r--    1 uqs              wheel              819200 Feb 10 09:13 c
    10       64 -rw-r--r--    1 uqs              wheel             5242880 Feb 10 09:13 b
     8       64 -rw-r--r--    1 uqs              wheel            10485760 Feb 10 09:13 a

Great, now I'm even more angry at sort(1) than before ...

Regards,
Uli


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