topic Re: Perl Sorting Question in Operating System - HP-UX

Perl Sorting Question

Jason Berendsen — Tue, 27 Jan 2004 07:48:15 GMT

I am trying to do a sort on file access time of a directory on a Windows NT direcotry. I can get the atime and the file name, but when I do a sort it always defaults to an ASCII sort on the filename. How do I do a numeric sort on the atime field? Is there an easy way to sort numerically on a specific field in Perl?

Re: Perl Sorting Question

Elmar P. Kolkman — Tue, 27 Jan 2004 07:51:39 GMT

Outside of perl, it would be the option -n to the sort command. And if the time is not on the begin of the line but in column 2 it would become
sort -nk2

But I guess more info on how the list of data looks might help us to give you a algorithm to do what you want...

Re: Perl Sorting Question

H.Merijn Brand (procura — Tue, 27 Jan 2004 08:27:59 GMT

my @list = map { $_->[0] }
sort { $a->[1] <=> $b->[1] }
map { [ $_, (stat)[8] ] }
glob "*.html";

that's all

search doc's for swarzian transform

sort { $a <=> $b } ...

is sort ascending numerical. swap a and b for descending

Enjoy, Have FUN! H.Merijn