small letters

You want to change all capital letters into small letters. But then you want to change the first letter of a word into a capital letter. Your content is stored in r1.txt. The result of the script is stored in r2.txt

open (ERSTE, "r1.txt") || die "file not found\n";

@urls = <ERSTE>;
close (ERSTE);
open (OUTFILE, ">>r2.txt");

for(@urls)
{

$_ =~ tr/A-Z/a-z/; # change all in small letters
$_ = "\u$_"; # change the first into big letters

print OUTFILE $_,;
$i++;
}
close (OUTFILE);

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