sorting on time and date

[Bobby Kleemann]

~sdpm~
Your problem is with sorting fixed length versus variable length fields.  
If you could rename all your files so they had the same length in all
fields you'd be set with the standard alphabetical sort (almost, the month
day year will mess you up.  You may want to consider changing that to year
month day if/when you rename the files).

7-24-00-9:40 -> 07-24-00-09:40

The other option is to split the fileds and sort in a sane way:

sort {
	my @a = split /\W/, $a;
	my @b = split /\W/, $b;
	$a[2] <=> $b[2]
		or
	$a[0] <=> $b[0]
		or
	...
}

If you are doing this much work you'll probably want to throw it into a
Schwarzian transform to speed up the sorting if there are a lot of files.  
That involves changing your simple sort {} @data to a map {} sort {} map
{} @data, which can get ugly until you are used to it.
 _ _ _
 Bobby Kleemann <rkleeman at neta.com>
     http://www.neta.com/~rkleeman/

On Mon, 24 Jul 2000, Steve Meier wrote:

> ~sdpm~
> 
> Hello all,
> 
> I am trying to sort some files. When I collect my data, I name the files
> mm/dd/yy-hh/mm. (e.g. 7-24-00-9:40). I am using the standard sort
> function to try to achieve my results:
> 
> @sorted = sort {$a <=> $b} @unsorted;
> 
> However, it is not working as expected? After 10am, the files are sorted
> out of order. Does anyone know the right way to sort these files?
> 
> Thanks,
> 
> Steve
> 
> ~sdpm~
> 
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~sdpm~

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