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how to create custom modules in perl and how to import all modules with single command?

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Top Forums Shell Programming and Scripting how to create custom modules in perl and how to import all modules with single command?
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Old 04-02-2012
how to create custom modules in perl and how to import all modules with single command?
I have some custom functions which i want to use in perl Scripting all time.
i want to How to create modules in perl and how to import them.
Also if i create 15 modules and i want to > import all at once then how can i import?
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LEARN ABOUT CENTOS

lib::core::only

lib::core::only(3)					User Contributed Perl Documentation					lib::core::only(3)

NAME

       lib::core::only - Remove all non-core paths from @INC to avoid site/vendor dirs

SYNOPSIS

	 use lib::core::only; # now @INC contains only the two core directories

       To get only the core directories plus the ones for the local::lib in scope:

	 $ perl -Mlib::core::only -Mlocal::lib=~/perl5 myscript.pl

       To attempt to do a self-contained build (but note this will not reliably propagate into subprocesses, see the CAVEATS below):

	 $ PERL5OPT='-Mlib::core::only -Mlocal::lib=~/perl5' cpan

DESCRIPTION

       lib::core::only is simply a shortcut to say "please reduce my @INC to only the core lib and archlib (architecture-specific lib) directories
       of this perl".

       You might want to do this to ensure a local::lib contains only the code you need, or to test an App::FatPacker tree, or to avoid known bad
       vendor packages.

       You might want to use this to try and install a self-contained tree of perl modules. Be warned that that probably won't work (see
       "CAVEATS").

       This module was extracted from local::lib's --self-contained feature, and contains the only part that ever worked. I apologise to anybody
       who thought anything else did.

CAVEATS

       This does not propagate properly across perl invocations like local::lib's stuff does. It can't. It's only a module import, so it only
       affects the specific perl VM instance in which you load and import() it.

       If you want to cascade it across invocations, you can set the PERL5OPT environment variable to '-Mlib::core::only' and it'll sort of work.
       But be aware that taint mode ignores this, so some modules' build and test code probably will as well.

       You also need to be aware that perl's command line options are not processed in order - -I options take effect before -M options, so

	 perl -Mlib::core::only -Ilib

       is unlike to do what you want - it's exactly equivalent to:

	 perl -Mlib::core::only

       If you want to combine a core-only @INC with additional paths, you need to add the additional paths using -M options and the lib module:

	 perl -Mlib::core::only -Mlib=lib

	 # or if you're trying to test compiled code:

	 perl -Mlib::core::only -Mblib

       For more information on the impossibility of sanely propagating this across module builds without help from the build program, see
       <http://www.shadowcat.co.uk/blog/matt-s-trout/tainted-love> - and for ways to achieve the old --self-contained feature's results, look at
       App::FatPacker's tree function, and at App::cpanminus's --local-lib-contained feature.

AUTHOR

       Matt S. Trout <mst@shadowcat.co.uk>

LICENSE

       This library is free software under the same terms as perl itself.

COPYRIGHT

       (c) 2010 the lib::core::only "AUTHOR" as specified above.

perl v5.16.3							    2013-02-12							lib::core::only(3)