die <<HELP unless @ARGV == 2;
usage: transform.pl <word1> <word2>

The program finds a way from one word to other, like this:

% transform.pl love shit
love-lose-lost-loot-soot-shot-shit
HELP

my $left  =  shift(@ARGV) || 'love';
my $right =  shift(@ARGV) || 'shit';

[download]
Because you die if there are not two arguments on the command line there is no way that $left and $right will ever be assigned the values 'love' and 'shit'. 

for ($left, $right) {
    $_ = lc;
    tr/A-Za-z//cd;
}

[download]
You want to keep A-Z characters in a lc()ed string? What about non-ASCII lower case letters?

In reply to Re: Play and win the word morph game with the help of Perl :) by jwkrahn
in thread Play and win the word morph game with the help of Perl :) by Ieronim

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