On Fri, 17 Aug 2018 at 19:10, ToddAndMargo <ToddAndMargo@xxxxxxxx> wrote: > > Hi All, > > I am not find Perl 5's "say" in > > https://ewr.edge.kernel.org/fedora-buffet/fedora/linux/releases/28/Everything/x86_64/os/Packages/p/ > > # dnf list perl-say* > Last metadata expiration check: 0:09:13 ago on Fri 17 Aug 2018 09:58:26 > AM PDT. > Error: No matching Packages to list > > > # perl -Msay -e 'say "Hi";' > Can't locate say.pm in @INC (you may need to install the say module) > (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 > /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl > /usr/lib64/perl5 /usr/share/perl5). > BEGIN failed--compilation aborted. > > And I tried downloading it from cpan and it won't install. > > What am I missing? I know you have a solution, but I thought it was worth explaining exactly what is going on here. The 'say' function is not in an external module. It is a part of the core Perl language. When 'say' was added to Perl (in version 5.10) it was decided that too many people might already have a subroutine called 'say()' in their code, so it wasn't turned on by default. There are a few ways to turn on support for 'say' in your Perl program. 1/ Explicitly with the 'feature' pragma (see "perldoc feature" for more details). use feature 'say'; say 'Hello'; 2/ By requiring a version 5.10 or greater of Perl (which turns on all of the features for the version of Perl you have asked for). use 5.010; say 'hello'; 3/ You can use the -M command line argument to simulate the 'use feature' approach. perl -Mfeature=say -e'say "hello"' 4/ But using -E instead of -e will turn on all features for your current version of Perl. perl -E'say "hello"' -- Dave Cross :: dave@xxxxxxxxxxx http://dave.org.uk/ @davorg _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx/message/3KZWXUK3NWJVEFU4KOV6UADSQIZ443I2/
