Script / sort question; sort on last field of a line?

[Peter]

On Thu, 4 May 2006, Walter Dnes wrote:

>  How do I sort on the last (or 2nd last or whatever) field of a line?
>
>  One awkward possibility involves rewriting the lines backwards,
> sorting on what is now the first field, and rewriting the lines
> backwards a second time.  I'm not aware of a utility to do write lines
> backwards.  I am *NOT* thinking of "tac" which writes the lines
> unaltered but reverses their order.  I want to write *EACH INDIVIDUAL
> LINE* backwards.  The following script does what I want...

Rewriting backwards and sorting will cause trouble because of padding 
(reversed abcz is before reversed abca)

sort -rk ... should do it

Peter

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