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Continue to ChatO'Reilly Media book: Learning the Korn Shell, 2nd Edition https://wp.jochen.hayek.name/blog-en/2012/10/06/oreilly-media-book-learning-the-korn-shell-2nd-edition/
O'Reilly Media book: Learning the Korn Shell, 2nd Edition https://wp.jochen.hayek.name/blog-en/2012/10/06/oreilly-media-book-learning-the-korn-shell-2nd-edition/