This should work: 

chomp($_=<DATA>);
$_= join(',', map { s/"/""/g; '"' . $_ . '"' } split /,/) . "\n";

[download]
s$$([},&%#}/&/]+}%&{})*;#$&&s&&$^X.($'^"%]=\&(|?*{%
+.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e

In reply to Re^3: One Liner to double quote every field in a delimited file by Skeeve
in thread One Liner to double quote every field in a delimited file by BOK_in_NEPA

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