The reason is because say is not (yet) a built-in function. You have to import the function into your namespace first, hence use feature 'say';

Alternatively, you can just use print, which does not implicitly add the new line for you like say does. 

print "$_\n" for $line1 =~ /[$line2]/g;

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You can also add the -l (dash elle) modifier to your "shebang" line which essentially makes print behave like say: 
#!/path/to/perl -l

...

print for $line1 =~ /[$line2]/g;

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Hope this helps!

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)

In reply to Re^5: Is there a way to compare strings without using an array? (say) by jeffa
in thread Is there a way to compare strings without using an array? by Jeri

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