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Top Forums Shell Programming and Scripting How to sort list of directories in descending order in perl? Post 303042945 by Neo on Monday 13th of January 2020 04:14:17 AM
Old 01-13-2020
You should provide definitions of all variables, exactly to get the best solution / help:

Put in code what you say in your description, please.

For example, in your code fragment $wdir is defined where? What exact version of PERL are you running. For example:

Code:
macos$ perl --version

This is perl 5, version 18, subversion 4 (v5.18.4) built for darwin-thread-multi-2level
(with 2 registered patches, see perl -V for more detail)

Copyright 1987-2013, Larry Wall

You want us to assume that $wdir is correctly defined as your home directory, is that right?

Where do you say that in your post?

Please be precise and clear. Define all variable in your code. Details matter. Versions matter. Even OS can matter....

Anyway, assuming $wdir is your current working directory.... the perhaps you can benefit from this PERL page:

readdir - perldoc.perl.org
 

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Net::LDAP::Control::Sort(3)				User Contributed Perl Documentation			       Net::LDAP::Control::Sort(3)

NAME
Net::LDAP::Control::Sort - Server Side Sort (SSS) control object SYNOPSIS
use Net::LDAP::Control::Sort; use Net::LDAP::Constant qw(LDAP_CONTROL_SORTRESULT); $sort = Net::LDAP::Control::Sort->new( order => "cn -phone" ); $mesg = $ldap->search( @args, control => [ $sort ]); ($resp) = $mesg->control( LDAP_CONTROL_SORTRESULT ); print "Results are sorted " if $resp and !$resp->result; DESCRIPTION
"Net::LDAP::Control::Sort" is a sub-class of Net::LDAP::Control. It provides a class for manipulating the LDAP Server Side Sort (SSS) request control 1.2.840.113556.1.4.473 as defined in RFC-2891 If the server supports sorting, then the response from a search operation will include a sort result control. This control is handled by Net::LDAP::Control::SortResult. CONSTRUCTOR ARGUMENTS
order A string which defines how entries may be sorted. It consists of multiple directives, separated by whitespace. Each directive describes how to sort entries using a single attribute. If two entries have identical attributes, then the next directive in the list is used. Each directive specifies a sorting order as follows -attributeType:orderingRule The leading "-" is optional, and if present indicates that the sorting order should be reversed. "attributeType" is the attribute name to sort by. "orderingRule" is optional and indicates the rule to use for the sort and should be valid for the given "attributeType". Any one attributeType should only appear once in the sorting list. Examples "cn" sort by cn using the default ordering rule for the cn attribute "-cn" sort by cn using the reverse of the default ordering rule "age cn" sort by age first, then by cn using the default ordering rules "cn:1.2.3.4" sort by cn using the ordering rule defined as 1.2.3.4 METHODS
As with Net::LDAP::Control each constructor argument described above is also available as a method on the object which will return the current value for the attribute if called without an argument, and set a new value for the attribute if called with an argument. SEE ALSO
Net::LDAP, Net::LDAP::Control::SortResult, Net::LDAP::Control, http://www.ietf.org/rfc/rfc2891.txt AUTHOR
Graham Barr <gbarr@pobox.com> Please report any bugs, or post any suggestions, to the perl-ldap mailing list <perl-ldap@perl.org> COPYRIGHT
Copyright (c) 1999-2004 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.18.2 2013-07-21 Net::LDAP::Control::Sort(3)
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