update perl from 5.14.2 (ubuntu 12.04 default version) to 5.18

Thai Heng has asked for the wisdom of the Perl Monks concerning the following question:

Now I have installed perl 5.18 to another directory ~/myhome/localperl, but I am a newbie for perl and catalsyt. I find some cpan moduler may dependent on perl version and some application created in perl 5.14.2 can't work when I export ~/myhome/localperl to $PATH. my questions are:

1. How can I uninstall perl 5.18?

2. How can I update from 5.14.2 to 5.18?

Thanks any reply!!!

Comment on update perl from 5.14.2 (ubuntu 12.04 default version) to 5.18

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Re: update perl from 5.14.2 (ubuntu 12.04 default version) to 5.18 by CountZero (Bishop) on Jun 08, 2013 at 07:58 UTC
Use Perlbrew. CountZero A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James My blog: Imperial Deltronics	[reply]
Re: update perl from 5.14.2 (ubuntu 12.04 default version) to 5.18 by Thai Heng (Beadle) on Jun 07, 2013 at 11:53 UTC
I must uninstall all cpan modulers installed in perl 5.14.2? and how can I do that simply?	[reply]
Re^2: update perl from 5.14.2 (ubuntu 12.04 default version) to 5.18 by ww (Archbishop) on Jun 07, 2013 at 12:28 UTC
Don't! Don't uninstall 5.14 modules. Don't mess with the default Perl because it's used by system processes. Set up (as you did) another dir for 5.18, and install the modules you need there. Then make sure your path to perl -- hashbang and lib directives -- point to the new package. Search this site (Google works well for this) for some combination of keywords "ubuntu," "update," "Perl" and "version." If you didn't program your executable by toggling in binary, it wasn't really programming!	[reply]