Install Cpan Module Ubuntu
Contribute on GitHub CPAN, the Comprehensive Perl Archive Network, is the primary source for publishing and fetching the latest modules and libraries for the Perl programming language. The default method for installing Perl modules, using the CPAN Shell, provides users with a great deal of power and flexibility, but this comes at the cost of a complex configuration and an inelegant default setup.
The cpanm client attempts to make the power of CPAN accessible to all users, particularly those who aren’t Perl developers, but have experience with the CPAN shell. This document outlines the procedures for installing cpanminus and demonstrates a number of basic use cases. If you’re new to the world of Linux systems administration, you may want to review our and before completing this guide. Install Dependencies. Debian and Ubuntu: apt-get update apt-get upgrade apt-get install perl build-essential libssl-dev. CentOS and Fedora: yum update yum install perl perl-devel curl gcc Install cpanminus. Curl the latest cpanminus and use it to bootstrap itself: curl -L perl - -sudo App::cpanminus.
Update cpanminus: cpanm -self-upgrade -sudo Use cpanminus Basic Usage The basic syntax to install a module with cpanminus is: cpanm Module::Name By default, Perl modules will be installed to /perl5 rather than the more customary /usr/local/bin directory. This will cause a warning during the installation process.
ActiveState maintains repositories of precompiled CPAN packages that can be installed with either the PPM command-line client, or the PPM GUI application. To install the DBD-mysql database driver all you have to do is run the ppm install command. Now all is set and you can install any perl module you want. Examples of what installed below: cpan prompt install IO::File cpan prompt install Net::SMTPauth cpan prompt install Email::MIME::Attachment::Stripper cpan prompt install Mail::POP3Client.
You can avoid this warning by adding the -sudo option, which will run the installation with root privileges and install to /usr/local/bin. If you would like to continue installing Perl modules to /perl5 without the warning, use the following command: cpanm -local-lib=/perl5 local::lib && eval $(perl -I /perl5/lib/perl5/ -Mlocal::lib) Skip Installed You can also use the -skip-installed option to avoid reinstalling modules when the latest version is already installed. Consider the following example: cpanm -sudo -skip-installed Catalyst::Runtime Class::Inspector This installs the specified modules to the system location (with -sudo), but only if they haven’t been installed already. Install from Remote URL You can also specify the url of a Perl module and CPAN will fetch the module from that location, build the dependencies, and install it: cpanm -sudo Note.
I apply the above patch, and install some modules. Installation of IO::Socket::IP 0.38 fail. Checking dependencies from MYMETA.json.
Checking if you have IO::Socket 0. Yes (1.36) Checking if you have Socket 1.97. Yes (2.009) Checking if you have Test::More 0.88.
Yes (0.98) Building and testing IO-Socket-IP-0.38 Building IO-Socket-IP t/00use.t. Ok t/01local-client-v4.t. Ok t/02local-server-v4.t. Ok t/03local-cross-v4.t. Ok t/04local-client-v6.t.
Ok t/05local-server-v6.t. Ok t/06local-cross-v6.t. Ok t/10args.t. Ok t/11sockopts.t. Ok t/12port-fallback.t. Ok t/13addrinfo.t. Ok t/14fileno.t.
Ok t/15io-socket.t. Ok t/16v6only.t. Ok t/17gai-flags.t. Ok t/18fdopen.t. Ok t/19no-addrs.t. Ok t/20subclass.t. Ok t/21as-inet.t.
Install Cpan Module Strawberry Perl
Ok t/22timeout.t. Ok t/30nonblocking-connect.t. Ok # Failed test '$socket not yet connected' # at t/31nonblocking-connect-internet.t line 38. # Failed test '-connect eventually fails with ECONNREFUSED' # at t/31nonblocking-connect-internet.t line 92. # dollarbang = Transport endpoint is not connected # Looks like you failed 2 tests of 9.
Dubious, test returned 2 (wstat 512, 0x200) Failed 2/9 subtests t/99pod.t. Skipped: Test::Pod 1.00 required for testing POD. Actually the ideal situation would be that File::Find detects that nlink can't be used, and disables it for us.
Nlink in File::Find breaks with many file systems, including ISO9660. Which is why File::Find tries (and fails on WSL) to figure out whether nlink can safely be used, and disables it if not. In a discussion from 2000, Randal L. Schwartz said: 'If you find an architecture on which you need to set this manually, please report it to the developers.
This is supposed to be set automatically on those system which need it. If it isn't, it's a bug.'
Ideal situation? File::Find figures out to disable nlink when running on WSL.
Whether that requires a change to File::Find or to WSL I wouldn't hazard a guess. It could be that File::Find's nlink detection is thrown off because it doesn't expect to be in a 'Ubuntu on Windows' environment, in which case File::Find would need to change. It could be that File::Find's nlink detection doesn't work because WSL delivers the wrong answers to the tests File::Find makes to see whether nlink is supported, in which case WSL would need to change. I see your point. Looking at the File::Find code I see: $File::Find::dontusenlink = 1 if $^O eq 'os2' $^O eq 'dos' $^O eq 'amigaos' $IsWin32 $^O eq 'interix' $^O eq 'cygwin' $^O eq 'epoc' $^O eq 'qnx' $^O eq 'nto'; Of course when I run: perl -e 'print $^O' under WSL, I get linux.
I had a similar problem in my own /.zshrc. There were some commands that I only wanted to run if I was running under WSL. Currently my solution is: if -f '/mnt/c/Windows/System32/bash.exe' ; then # must be running under WSL. Fi The problem with this code is that someone may change their Windows folder to another location, but WSL doesn't have access to the windows environment variables to check for%WINDIR%.
Apparently some newer development versions of WSL support calling cmd.exe from inside WSL, so that may provide a better solution. Thanks for digging and finding that! We can positively detect WSL via /proc/version and MS states they can't see a situation where they'd change that. See Do you think checking for the presence of 'Microsoft' or 'WSL' in /proc/version just for nlink is the right way to go?
I wouldn't want to set IsWin32 because it's not, by and large apps should think they are on Linux. Ubuntu on WSL is close enough to Linux for that to be the right way to go, though there's no actual Linux anywhere to be seen, just a bunch of GNU and other apps running on WSL:). If /proc/version is the right way to go here, I can create a pull request with it for File::Find (assuming that lives on GitHub).