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As gellyfish said, you can have multiple perls installed simultaneously:

$ perl -v This is perl, v5.8.0 built for i386-linux-thread-multi (with 1 registered patch, see perl -V for more detail) Copyright 1987-2002, Larry Wall Perl may be copied only under the terms of either the Artistic License + or the GNU General Public License, which may be found in the Perl 5 source ki +t. Complete documentation for Perl, including FAQ lists, should be found +on this system using `man perl' or `perldoc perl'. If you have access to + the Internet, point your browser at http://www.perl.com/, the Perl Home Pa +ge. $ perl5.8 -v This is perl, v5.8.6 built for i686-linux Copyright 1987-2004, Larry Wall Perl may be copied only under the terms of either the Artistic License + or the GNU General Public License, which may be found in the Perl 5 source ki +t. Complete documentation for Perl, including FAQ lists, should be found +on this system using `man perl' or `perldoc perl'. If you have access to + the Internet, point your browser at http://www.perl.com/, the Perl Home Pa +ge. $ p58 # change environment $ perl5.8.3 -v This is perl, v5.8.3 built for i686-linux Copyright 1987-2003, Larry Wall Perl may be copied only under the terms of either the Artistic License + or the GNU General Public License, which may be found in the Perl 5 source ki +t. Complete documentation for Perl, including FAQ lists, should be found +on this system using `man perl' or `perldoc perl'. If you have access to + the Internet, point your browser at http://www.perl.com/, the Perl Home Pa +ge.

Note - I have 5.8.4 and 5.8.5 installed as well. Except for 5.8.0, they inherit each others' modules, as well. 5.8.0 is what comes with RHEL3, which I leave as-is so that RHEL3 apps continue to work, while the rest were compiled into a new directory, /share/perl5, and are what I use for my own code. Before I upgraded to RHEL3, I had RH7.3, which had Perl 5.6, and I also had compiled 5.8.0, and 5.8.1.

As to "start developpement with 5.0" - that's not quite what you're doing. Between 5.005 and 5.6, Perl renamed its numbering scheme a bit. 5.005 in the old scheme is the same as 5.5 in the new scheme. Which is significantly newer than 5.0 ;-)

Update: After re-reading the output, I realised that I hadn't updated my perl5.8 symlink to the latest perl version. Corrected the output above.


In reply to Re^3: Solaris, Perl 5.8 and use 5.005 by Tanktalus
in thread Solaris, Perl 5.8 and use 5.005 by ZlR

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