Tcs interprets the named file(s) (standard input default) as astream of characters from the ics
character set or format and converts them to runes, and then converts them into a stream of characters
from the ocs character set or format on the standardoutput.

Supported encodings include utf (ISO utf-8), ascii, ISO 8859-[123456789], koi8, jis-kanji, ujis,
ms-kanji, jis, gb,big5, unicode, tis, msdos, and atari. (Ported from Debian GNU Linux)