App::perlbrew - Manage perl installations in your $HOME
# Initialize perlbrew init # pick a prefered CPAN mirror perlbrew mirror # Install some Perls perlbrew install perl-5.12.1 perlbrew install perl-5.8.1 perlbrew install perl-5.11.5 # See what were installed perlbrew installed # Switch perl in the $PATH perlbrew switch perl-5.12.1 perl -v # Switch to another version perlbrew switch perl-5.8.1 perl -v # Switch to a certain perl executable not managed by perlbrew. perlbrew switch /usr/bin/perl # Or turn it off completely. Useful when you messed up too deep. perlbrew off # Use 'switch' command to turn it back on. perlbrew switch perl-5.12.1
perlbrew is a program to automate the building and installation of perl in the users HOME. At the moment, it installs everything to
~/perl5/perlbrew, and requires you to tweak your PATH by including a bashrc/cshrc file it provides. You then can benefit from not having to run 'sudo' commands to install cpan modules because those are installed inside your HOME too. It's a completely separate perl environment.
The recommended way to install perlbrew is to run these statements in your shell:
curl -LO http://xrl.us/perlbrew chmod +x perlbrew ./perlbrew install
perlbrew installs itself to
~/perl5/perlbrew/bin, and you should follow the instruction on screen to setup your
.cshrc to put it in your PATH.
~/perl5/perlbrew will contain all install perl executables, libraries, documentations, lib, site_libs. If you need to install
perlbrew, and the perls it brews, into somewhere else because, say, your HOME has limited quota, you can do that by setting a
PERLBREW_ROOT environment variable before you run
export PERLBREW_ROOT=/mnt/perlbrew ./perlbrew install
The downloaded perlbrew is a self-contained standalone program that embed all non-core modules it uses. It should be runnable with perl 5.8 or later versions of perl.
You may also install perlbrew from CPAN with cpan / cpanp / cpanm:
This installs 'perlbrew' into your current PATH and it is always executed with your current perl.
NOTICE. When you install or upgrade perlbrew with cpan / cpanp / cpanm, make sure you are not using one of the perls brewed with perlbrew. If so, the `perlbrew` executable you just installed will not be available after you swith to other perls. You might not be able to invoke further
perlbrew commands after so because the executable
perlbrew is not in your
PATH anymore. Installing it again with cpan can temporarily solve this problem. To ensure you are not using a perlbrewed perl, run
perlbrew off before upgrading.
It should be relatively safe to install
App::perlbrew with system cpan (like
/usr/bin/cpan) because then it will be installed under a system PATH like
/usr/bin, which is not effected by
perlbrew switch command.
Again, it is recommended to let
perlbrew install itself. It's easier, and it works better.
Please read the program usage by running
(No arguments.) To read a more detail one:
Alternatively, this should also do:
If you messed up too much or get confused by having to many perls installed, you can do:
perlbrew switch /usr/bin/perl
It will make sure that your current perl in the PATH is pointing to
As a matter of fact the
switch command checks whether the given argument is an executale or not, and create a symlink named 'perl' to it if it is. If you really want to you are able to do:
perlbrew switch /usr/bin/perl6
But maybe not. After running this you might not be able to run perlbrew anymore. So be careful not making mistakes there.
Copyright (c) 2010, Kang-min Liu
The standalone executable contains the following modules embedded.
Copyright (c) 2000-2002 Roy Hopper, 2009 Adam Kennedy.
Licensed under the same term as Perl itself.
The MIT License
Patches and code improvements has been contributed by:
Tatsuhiko Miyagawa, Chris Prather, Yanick Champoux, aero, Jason May, Jesse Leuhrs, Andrew Rodland, Justin Davis, Masayoshi Sekimura, castaway, jrockway, chromatic, Goro Fuji, Sawyer X, and Danijel Tasov.
DISCLAIMER OF WARRANTY¶
BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.
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