App::perlbrew - Manage perl installations in your
# Installation curl -L https://install.perlbrew.pl | bash # Initialize perlbrew init # See what is available perlbrew available # Install some Perls perlbrew install 5.18.2 perlbrew install perl-5.8.1 perlbrew install perl-5.19.9 # See what were installed perlbrew list # Swith to an installation and set it as default perlbrew switch perl-5.18.2 # Temporarily use another version only in current shell. perlbrew use perl-5.8.1 perl -v # Or turn it off completely. Useful when you messed up too deep. # Or want to go back to the system Perl. perlbrew off # Use 'switch' command to turn it back on. perlbrew switch perl-5.12.2 # Exec something with all perlbrew-ed perls perlbrew exec -- perl -E 'say $]'
perlbrew is a program to automate the building and installation of perl in an easy way. It provides multiple isolated perl environments, and a mechanism for you to switch between them.
Everything are installed unter
~/perl5/perlbrew. You then need to include a bashrc/cshrc provided by perlbrew to tweak the PATH for you. You then can benefit from not having to run
sudo commands to install cpan modules because those are installed inside your
For the documentation of perlbrew usage see perlbrew command on MetaCPAN, or by running
perlbrew help, or by visiting perlbrew's official website. The following documentation features the API of
App::perlbrew module, and may not be remotely close to what your want to read.
It is the simplest to use the perlbrew installer, just paste this statement to your terminal:
curl -L https://install.perlbrew.pl | bash
Or this one, if you have
fetch (default on FreeBSD):
fetch -o- https://install.perlbrew.pl | sh
perlbrew installs itself to
~/perl5/perlbrew/bin, and you should follow the instruction on screen to modify your shell rc file to put it in your PATH.
The installed perlbrew command is a standalone executable that can be run with system perl. The minimum system perl version requirement is 5.8.0, which should be good enough for most of the OSes these days.
A fat-packed version of patchperl is also installed to
~/perl5/perlbrew/bin, which is required to build old perls.
~/perl5/perlbrew will contain all install perl executables, libraries, documentations, lib, site_libs. In the documentation, that directory is referred as
perlbrew root. If you need to set it to somewhere else because, say, your
HOME has limited quota, you can do that by setting
PERLBREW_ROOT environment variable before running the installer:
export PERLBREW_ROOT=/opt/perl5 curl -L https://install.perlbrew.pl | bash
As a result, different users on the same machine can all share the same perlbrew root directory (although only original user that made the installation would have the permission to perform perl installations.)
You may also install perlbrew from CPAN:
In this case, the perlbrew command is installed as
/usr/local/bin/perlbrew or others, depending on the location of your system perl installation.
Please make sure not to run this with one of the perls brewed with perlbrew. It's the best to turn perlbrew off before you run that, if you're upgrading.
perlbrew off cpan App::perlbrew
You should always use system cpan (like /usr/bin/cpan) to install
App::perlbrew because it will be installed under a system PATH like
/usr/bin, which is not affected by perlbrew
self-upgrade command will not upgrade the perlbrew installed by cpan command, but it is also easy to upgrade perlbrew by running
cpan App::perlbrew again.
Return the "current perl" object attribute string, or, if absent, the value of
PERLBREW_PERL environment variable.
current_perl object attribute to the given value.
perlbrew project uses github https://github.com/gugod/App-perlbrew/issues and RT <https://rt.cpan.org/Dist/Display.html?Queue=App-perlbrew> for issue tracking. Issues sent to these two systems will eventually be reviewed and handled.
See https://github.com/gugod/App-perlbrew/contributors for a list of project contributors.
Copyright (c) 2010- Kang-min Liu
The MIT License
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