thanks for you reply.
if i want to use the entire line as a key, and sort by the third
field, whether should i use sort -u -k3 -k1 -k2 a to do that?
On Wed, Nov 9, 2011 at 03:45, Eric Blake wrote:
> On 11/08/2011 11:54 AM, Eric Blake wrote:
>>>
>>> 22:41:39#tp#~> /usr/local/bin/sort -u -k1,3 a
>>
when i use sort command with -k and -n together, i got the wrong result:
22:41:21#tp#~> LC_ALL=C
22:41:39#tp#~> /usr/local/bin/sort -u -k1,3 a
1 a q
1 a w
3 a w
22:41:48#tp#~> /usr/local/bin/sort -u -k3 a
1 a q
1 a w
22:41:49#tp#~> cat a
1 a q
1 a w
3 a w
22:41:52#tp#~> /usr/local/bin/sort --versio
