Re: how to install perl 5.10.1 on ubuntu9.10?

To install your own Perl, follow these steps:

sudo su -
cd /opt
mkdir perl-5.10.1
mkdir src
cd src
wget http://cpan.org/src/perl-5.10.1.tar.gz
tar xzf perl-5.10.1.tar.gz
cd perl-5.10.1
rm -f config.sh Policy.sh
./Configure -Dprefix=/opt/perl-5.10.1
make
make test
make install
cd /opt
ln -s perl-5.10.1 perl
exit
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And you're done. Do not add /opt/perl/bin to your (or root's) $PATH.

To install modules for your own Perl, use /opt/perl/bin/cpanp. Never use /usr/bin/cpanp or /usr/bin/cpan. (To install Perl modules for the system Perl, continue to use aptitude.)

Always use the fully-qualified shebang line at the beginning of scripts that you explicitly want to use /opt/perl/bin/perl:

#!/opt/perl/bin/perl
...
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Comment on Re: how to install perl 5.10.1 on ubuntu9.10? Select or Download Code

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Re^2: how to install perl 5.10.1 on ubuntu9.10? by przemo (Scribe) on Nov 19, 2009 at 09:38 UTC
Do not add /opt/perl/bin to your (or root's) $PATH. What is wrong with prepending own's Perl bin dir to `$PATH` (not root's, agreed)? I do it all the time, no problems so far. Always use the fully-qualified shebang line at the beginning of scripts that you explicitly want to use /opt/perl/bin/perl: OK, this shows the occasional use-case for custom Perl. However, if you want your scripts to be portable, do not hard-code paths. Instead, set `$PATH` and use something like `#!/usr/bin/env perl` [download] which is much more portable.	[reply] [d/l] [select]
Re^3: how to install perl 5.10.1 on ubuntu9.10? by Anonymous Monk on Nov 19, 2009 at 16:47 UTC
What is wrong with prepending own's Perl bin dir to $PATH (not root's, agreed)? Gah. I really need to create an account here so I can edit my posts. You're right, thanks for the correction. I should've written "Do not add /opt/perl/bin to root's $PATH". As you point out, prepending it to your own (not-root) $PATH works great. The only reason I can think of that you might not want to add it to your own (not root) $PATH is that, when logged in as yourself, you'll get used to always automatically getting /opt/perl/bin/perl, and then when you log in as root, you'll run some code may forget that you're back to getting /usr/bin/perl. :)	[reply]
Re^3: how to install perl 5.10.1 on ubuntu9.10? by Anonymous Monk on Nov 19, 2009 at 10:15 UTC
do not hard-code paths You should always hard-code paths as part of the install process, otherwise use `/your/favorite/perl yourperlprogram`	[reply] [d/l]