02-27-2010
Hi.
Of the systems on which I tried to use od with a directory, Solaris 10 failed, but (some versions of) IBM AIX, and HP-UX succeeded.
The K & R book was written a long time ago, before Linux was created. I do not know why Linux restricts commands like cat and od from dealing with directories.
The chmod behavior might be explained by the setting of your umask. See man umask for details ... cheers, drl
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LEARN ABOUT CENTOS
file::homedir::windows
File::HomeDir::Windows(3) User Contributed Perl Documentation File::HomeDir::Windows(3)
NAME
File::HomeDir::Windows - Find your home and other directories on Windows
SYNOPSIS
use File::HomeDir;
# Find directories for the current user (eg. using Windows XP Professional)
$home = File::HomeDir->my_home; # C:Documents and Settingsmylogin
$desktop = File::HomeDir->my_desktop; # C:Documents and SettingsmyloginDesktop
$docs = File::HomeDir->my_documents; # C:Documents and SettingsmyloginMy Documents
$music = File::HomeDir->my_music; # C:Documents and SettingsmyloginMy DocumentsMy Music
$pics = File::HomeDir->my_pictures; # C:Documents and SettingsmyloginMy DocumentsMy Pictures
$videos = File::HomeDir->my_videos; # C:Documents and SettingsmyloginMy DocumentsMy Video
$data = File::HomeDir->my_data; # C:Documents and SettingsmyloginLocal SettingsApplication Data
DESCRIPTION
This module provides Windows-specific implementations for determining common user directories. In normal usage this module will always be
used via File::HomeDir.
Internally this module will use Win32::GetFolderPath to fetch the location of your directories. As a result of this, in certain unusual
situations (usually found inside large organisations) the methods may return UNC paths such as "\cifs.localhome$".
If your application runs on Windows and you want to have it work comprehensively everywhere, you may need to implement your own handling
for these paths as they can cause strange behaviour.
For example, stat calls to UNC paths may work but block for several seconds, but opendir() may not be able to read any files (creating the
appearance of an existing but empty directory).
To avoid complicating the problem any further, in the rare situation that a UNC path is returned by "GetFolderPath" the usual -d validation
checks will not be done.
SUPPORT
See the support section the main File::HomeDir module.
AUTHORS
Adam Kennedy <adamk@cpan.org>
Sean M. Burke <sburke@cpan.org>
SEE ALSO
File::HomeDir, File::HomeDir::Win32 (legacy)
COPYRIGHT
Copyright 2005 - 2011 Adam Kennedy.
Some parts copyright 2000 Sean M. Burke.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
The full text of the license can be found in the LICENSE file included with this module.
perl v5.16.3 2012-10-19 File::HomeDir::Windows(3)