07-06-2009
vbe is correct to ask for ownership and permissions on /opt/test.
Just a little background, any time you create a new file or directory UNIX/Linux sets the ownership to the user id and group id of the user creating the file. The permissions that vbe mentions are if you can read, write, or execute the file. These are set to a default value that is part of your environment.
Here is a few commands that you might be interested in:
chown - changes the ownership of a file for user id.
chgrp - changes the ownership of a file for group id.
chmod - permission of files.
umask - default permissions for newly created files.
Hope these helps, let me know if I have helped.
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LEARN ABOUT DEBIAN
lib::abs
lib::abs(3pm) User Contributed Perl Documentation lib::abs(3pm)
NAME
lib::abs - "lib" that makes relative path absolute to caller.
SYNOPSIS
Simple use like "use lib ...":
use lib::abs qw(./mylibs1 ../mylibs2);
use lib::abs 'mylibs';
Extended syntax (glob)
use lib::abs 'modules/*/lib';
There are also may be used helper function from lib::abs (see example/ex4):
use lib::abs;
# ...
my $path = lib::abs::path('../path/relative/to/me'); # returns absolute path
DESCRIPTION
The main reason of this library is transformate relative paths to absolute at the "BEGIN" stage, and push transformed to @INC. Relative
path basis is not the current working directory, but the location of file, where the statement is (caller file). When using common "lib",
relative paths stays relative to curernt working directory,
# For ex:
# script: /opt/scripts/my.pl
use lib::abs '../lib';
# We run `/opt/scripts/my.pl` having cwd /home/mons
# The @INC will contain '/opt/lib';
# We run `./my.pl` having cwd /opt
# The @INC will contain '/opt/lib';
# We run `../my.pl` having cwd /opt/lib
# The @INC will contain '/opt/lib';
Also this module is useful when writing tests, when you want to load strictly the module from ../lib, respecting the test file.
# t/00-test.t
use lib::abs '../lib';
Also this is useful, when you running under "mod_perl", use something like "Apache::StatINC", and your application may change working
directory. So in case of chdir "StatINC" fails to reload module if the @INC contain relative paths.
RATIONALE
Q: We already have "FindBin" and "lib", why we need this module?
A: There are several reasons:
1) "FindBin" could find path incorrectly under "mod_perl"
2) "FindBin" works relatively to executed binary instead of relatively to caller
3) Perl is linguistic language, and `use lib::abs "..."' semantically more clear and looks more beautiful than `use FindBin; use lib
"$FindBin::Bin/../lib";'
4) "FindBin" b<will> work incorrectly, if will be called not from executed binary (see <http://github.com/Mons/lib-abs-vs-findbin>
comparison for details)
BUGS
None known
COPYRIGHT & LICENSE
Copyright 2007-2010 Mons Anderson.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
AUTHOR
Mons Anderson, "<mons@cpan.org>"
CONTRIBUTORS
Oleg Kostyuk, "<cub@cpan.org>"
perl v5.10.1 2010-11-16 lib::abs(3pm)