From: nobu.nokada@...
Date: 2001-12-28T14:40:24+09:00
Subject: [ruby-talk:29513] Re: How to sort  " sort -k3,3   -k9,9  file"

Hi,

At Fri, 28 Dec 2001 14:14:41 +0900,
desibtis@hotmail.com (Sang DeSibtis) wrote:
> How do I sort an array of lines having fix number of columns without
> having to pass in a block of code to the array.sort() methode ?  I
> would like the output to be like the subject line--sort column 3 and
> column 9. Like, sort -k3,3 -k9,9 filename .

In 1.6:
array.collect {|s| [s[2], s[8], s]}.sort.collect {|s| s.last}

In 1.7:
array.sort_by {|s| [s[2], s[8]]}


Nobu Nakada