feature(3p) Perl Programmers Reference Guide feature(3p)

feature(3p) Perl Programmers Reference Guide feature(3p) # feature(3p) Perl Programmers Reference Guide feature(3p) NNAAMMEE # feature - Perl pragma to enable new features SSYYNNOOPPSSIISS # use feature qw(fc say); # Without the "use feature" above, this code would not be able to find # the built-ins "say" or "fc": say "The case-folded version of $x is: " . fc $x; # set features to match the :5.10 bundle, which may turn off or on # multiple features (see below) use feature ':5. ...