Permissions
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A few years ago I wrote a simple but handy Mac app that calculates unix file permissions using a matrix of check boxes. I wrote it because I wanted to better understand how those octal values get calculated and to expand my experience of writing Mac apps. I was also learning some crazy assembly code at the time too so I was also making sense of putting bitwise operations to task. Rather than let this code languish on my hard drive, I thought I’d share…

http://richardwarrender.com/2011/06/calculating-unix-file-permissions/

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This projected is licensed under the terms of the MIT license. See license file for details.