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So often, newcomers to programming try to use an "x"
operator to multiply - and it doesn't work; they should use
"*" in most languages. In Perl ... "x" means something
different ... "replicate the string on the left the number
of times on the right".
I've frequently been asked for a good example of where "x" is useful. Here's one - printing out the corret number of "-" signs to underline a title in a fixed width font.
print "who are you";
$name = <STDIN>;
print "-" x length ($name),"\n";
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