#!/usr/bin/perl -w

sub remove_caps(\$) {
##              ^^^ here's the magic...
 my $val = shift;
  $$val =~ s/[A-Z]+//g;
  #this removes _all_ caps...
}
my $test = 'Hello World';

remove_caps($test);

print "$test\n";

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In reply to RE: modify variable on pass by value by cianoz
in thread modify variable on pass by value by Anonymous Monk

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