Get original perl on RHEL 6 - perl

I know it was foolish but I uninstalled perl. When I reinstalled it using YUM it has several dependency issues.
How can I get perl in its original form? The one which is distributed with RHEL.
Thank You.

yum install perl
should be enough. YUM will resolve any dependency issue automatically.

Related

Trouble with installing Monitorix (Centos 7)

I am trying to install Monitorix; but I can't seem to overcome certain issues with the required modules.
I have every prerequisite except for three of the perl modules (MIME-Lite, HTTP-Server-Simple, and Config-General). Even though I have installed them using CPAN, I can't seem to use rpm or yum to finish the installation process (I have the monitorix-3.9.0-1.noarch.rpm file downloaded).
Is there something I'm missing, or some way that is much easier to go about this? I started with a bare-bones Centos 7 system, in accordance to the nature of the course I have to do this for. Anything would be helpful, at this point.
Installing with CPAN is not the equivalent of installing them with yum; the installs are not in the RPM Database. Uninstall them and try again with yum, e.g. yum install perl-MIME-Lite.

Installing Text::Fuzzy in cygwin 64 bit version

I am currently working to develop a code which helps me to find a closest string match for a given string from a list of strings. I came across a Perl module Text::Fuzzy which helps me to do that. But i am working on cygwin and a having hard time installing it properly by using cpan commands. So how do i properly install it?
Can't exec "make": No such file or directory at /usr/lib/perl5/5.22/CPAN/Distribution.pm
This means that make is missing. You will have to install make to be able to install a Perl module.
Just do
apt-get install build-essential
Edit: Since you are using cygwin, please refer the link which xxfelixxx has suggested.

installing yum from scratch on centos after mistakenly erarsing the python on a whole from centos 6.7

Mistakenly I deleted the python, which in result also corrupted the yum, now i cant install yum as it has many dependencies. Can anyone of you help me in getting the yum fiasco fixed?
You will have to install all dependencies packages one bye one on your server through RPM. There is no other way to get this fix.

Why won't cpanm install dependencies?

I'm trying to install PAR from cpanm like so: cpanm App::Packer::PAR, but it's giving me this error:
skipping R/RJ/RJBS/perl-5.22.0.tar.bz2
! Installing the dependencies failed: Module ExtUtils::Embed is not installed
! Bailing out the installation for PAR-Packer-1.026.
Even though cpanm is supposed to automatically install dependencies, I tried installing it manually: cpanm ExtUtils::Embed, but only got the same error: skipping R/RJ/RJBS/perl-5.22.0.tar.bz2
Any ideas as to why this is failing and how I can make it work?
ExtUtils::Embed is a dual-lifed module, meaning it's distributed as part of the perl distribution as well as in a second distribution.
cpanm is trying to install ExtUtils::Embed by installing the perl distribution instead of the ExtUtils-Embed distribution. Why? I'm not sure. Maybe because it's newer (1.32 instead of 1.2505).
cpanm is wisely unwilling to upgrade perl itself.
Now, the latest App::Packer::PAR's META doesn't specify a minimum version of ExtUtils::Embed, so the version in the ExtUtils-Embed distribution could very well be good enough. The following command will achieve this:
cpanm D/DO/DOUGM/ExtUtils-Embed-1.14.tar.gz
HOWEVER, as I mentioned earlier, ExtUtils::Embed comes with Perl. It has done so for over 15 years (since before Perl 5.4). It makes no sense that you have to install it.
You appear to be using a system whose provider decided to cause headaches by breaking the perl distribution into multiple packages. You should use your system's package manager (apt-get, yum or whatever) to install the missing portions of perl rather than using cpanm.

Why can't I find Perl modules after upgrading to Intrepid Ibex Ubuntu?

I upgraded to Ubuntu Intrepid Ibex yesterday and suddenly some of the Perl modules that I installed (on the Hardy Heron) have all gone missing!
I get the usual "Can't locate module in #INC" error. Has any of the CPAN repositories changed or something for Intrepid? Google doesn't help at all.
Thanks in advance.
The standard solution is to generate an "autobundle" with CPAN.pm before upgrading Perl. A search for autobundle yields links to a handful of existing SO questions discussing Perl module management and several that look like they should provide more information. The CPAN.pm manual touches on autobundle, but doesn't include much detail.
Since you've already upgraded Perl, one solution for installing your modules would be to generate an autobundle file and use the entries in the generated file as a guide to write a custom autobundle file with entries for your modules (only). The autobundle file format is just POD, so this should be easy to do.
In the future you should probably make it a habit to generate an autobundle before upgrading Perl. This is not a perfect solution, the autobundle will include entries for core modules that will have to be removed before actually building from it, but at least you'll have a snapshot of installed Perl modules so that you can get your Perl install fixed up after an upgrade.
Your Perl installation has changed from version 5.8 to 5.10. Since many of the modules you want are in perl-version-specific directories, you may want to re-install using the CPAN tools (e.g. the cpan command).
But since you're using Ubuntu, please keep in mind that many many CPAN libraries are also distributed through the Ubuntu package manager, and the CPAN packages install into a different place than Ubuntu installs them (this is transparent to the user, since both are in the #INC paths).
I recommend using the Ubuntu packages when they're available, because they will be updated by the package manager (APT) when new ones are released on the central package servers. The name format is slightly different. Here are two ways to install the same package, from different sources:
$ cpan List::MoreUtils # installs latest from CPAN
$ sudo apt-get install liblist-moreutils-perl # installs latest from Ubuntu universe
the advantage of the latter is that it will be updated by sudo apt-get update.
Perl changed on Intrepid.
Before upgrading, you had Perl 5.8, now you have 5.10.
Probably /usr/lib/perl5/5.10.* is used instead of /usr/lib/perl5/5.8.8 since the Perl version has changed