Transliteration doesn't use character classes. You don't need [ and ], unless you actually intend to also transliterate those square bracket characters. What's needed is: 

$line1 =~ tr/A-Za-z/a-zA-Z/

[download]

...assuming you're not dealing with some funky character set.


Dave

In reply to Re^4: uppercase/lowercase in a single expression by davido
in thread uppercase/lowercase in a single expression by greatshots

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