How do I change read/write mode for a file using Emacs?

Posted by Ray Vega on Stack Overflow See other posts from Stack Overflow or by Ray Vega
Published on 2008-10-08T00:08:37Z Indexed on 2010/03/09 10:21 UTC
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If a file is set to read only mode, how do I change it to write mode and vice versa from within Emacs?

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