Re: [gentoo-amd64] sort error

[Paul Hartman]

On Fri, Oct 10, 2008 at 3:05 PM, Paul Hartman
<paul.hartman+gentoo@×××××.com> wrote:
> On Fri, Oct 10, 2008 at 2:41 PM, P.V.Anthony <pvantony@×××××××××××.sg> wrote:
>> Hi,
>>
>> I am having a problem doing a simple sort. The sorting just does not
>> work with the command sort.
>>
>> In a directory are the following files,
>>
>> access.log.0
>> access.log.1
>> access.log.10
>> access.log.11
>> access.log.12
>> access.log.13
>> access.log.14
>> access.log.15
>> access.log.16
>> access.log.17
>> access.log.18
>> access.log.19
>> access.log.2
>> access.log.20
>> access.log.21
>> access.log.3
>> access.log.4
>> access.log.5
>> access.log.6
>> access.log.7
>> access.log.8
>> access.log.9
>>
>> Did the following command,
>>
>> #ls access.log.* | sort -n +0.11
>>
>> Got the following error,
>> #sort: open failed: +0.11: No such file or directory
>>
>> What am I doing wrong?
>>
>> Tried puting the list of files into a file called "testing" then did the
>> following command,
>> #sort -n +0.11 testing
>>
>> Still same error,
>> #sort: open failed: +0.11: No such file or directory
>>
>> How to correct this?
>

I found your solution by reading the manual. The syntax you use is obsolete:

"On older systems, `sort' supports an obsolete origin-zero syntax
`+POS1 [-POS2]' for specifying sort keys.  This obsolete behavior can
be enabled or disabled with the `_POSIX2_VERSION' environment variable
(*note Standards conformance::); it can also be enabled when
`POSIXLY_CORRECT' is not set by using the obsolete syntax with `-POS2'
present."

After setting that environment variable, it works as you expected.

_POSIX2_VERSION=1 sort -n +0.11 testing

Thanks,
Paul