Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
With reference to your update, you were pretty close, you just needed to actually compare the values to went to the trouble of extracting :) ...
sub files_sort { my $first_number; my $second_number; if ($a =~ /(\d+)_(\d+)_duration_(\w+)_comptage_(\d+).txt$/){ $first_number = $1; } if ($b =~ /(\d+)_(\d+)_duration_(\w+)_comptage_(\d+).txt$/){ $second_number = $1; } $first_number <=> $second_number; }
Have a look in 'perldoc perlop' if you don't know what the 'space ship' operator does, it's _very_ handy for sort functions, and is doing what you were trying to do with your if's and elses.

I would add though, that if this was my code, I'd probably write a sub to extract the index number from the file name, and write the whole thing like this.

sub my_sort { parse_file_name($a) <=> parse_file_name($b); } sub parse_file_name { if ($_[0] =~ /(\d+)_\d+_duration_\w+_comptage_\d+.txt$/) { return $1; } else { return 0; } }
my name's not Keith, and I'm not reasonable.

In reply to Re: sorting files by reasonablekeith
in thread sorting files by steph_bow

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others studying the Monastery: (5)
As of 2022-12-07 11:14 GMT
Find Nodes?
    Voting Booth?

    No recent polls found