Setting permissions using octal notation


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Setting permissions using octal notation

In the last movie we learned how to work with file permissions and to use chmod to change the permissions that we wanted for user, group, and other, and to do that we used what we called alpha notation. That's because we're using the alphabet, u, g, and o for user, group, and other and r, w, and x for read, write, and execute. That's everything you need to know to change file permissions. That's it. You could get by do everything with that. However, I want you to also learn about octal notation, because it's extremely popular. It's the way that I change file permissions and I think a lot of other Unix users do and you're bound to run into it.

So I want you to at least have some exposure to it. So remember here we have u, g, and o, r, w, and x and we use that to come up with those nine digits rwx, rw-, r--, right? Now imagine that for r, w, and x that we establish a conversion. Each one of those letters is instead going to be represented by a number, 4, 2, and 1...

Setting permissions using octal notation
Video duration: 3m 49s 6h 35m Beginner

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Setting permissions using octal notation provides you with in-depth training on IT. Taught by Kevin Skoglund as part of the Unix for Mac OS X Users

Subject:
IT
Software:
Mac OS X Unix
Author:
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