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Hey guys, I used to have a bookmark to a series of articles that discussed and explained user permissions on posix environments. Today I was finally going to get around to reading it and I noticed it was no longer in my bookmarks. I even went through some of my backup bookmarks and did not find it there. Naturally I went through Google to search for some sort of permissions tutorial in hopes of finding it but I did not find it there either.

The website was nicely formatted and I believe had a unique name, irrelevant to the subject of linux and simply random. The series consisted of four parts if I remember correctly. I have searched for other tutorials in place of that one, but most of them seem to have been written in a hurry and don't really take the time to explain it thoroughly.

I was just wondering if any of you guys might have come across it or know which one I am referring to. I would really really appreciate it if someone could provide me with the link so that I can read it and bookmark it.


EDIT: I believe that before I deleted it, when I had it, I had found it when I was trying to look-up how to chown a directory to the www-data group, it covered chmod, chown, and user/file permissions.

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closed as not constructive by Zypher Jan 23 '12 at 19:53

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.If this question can be reworded to fit the rules in the help center, please edit the question.

Could you provide the link? Perhaps someone else is searching for such a tutorial. – Christian Jan 8 '10 at 20:58
Oh, no, I didn't find it, I meant that I found it that one time I had it in my bookmarks, I will clarify. – Jorge Israel Peña Jan 8 '10 at 21:01
up vote 1 down vote accepted

The problem-space of POSIX permissions (not bringing POSIX ACLs into it) is a fairly small problem space.

The Wikipedia articles are pretty decent:

Here's a couple less "formal" articles, too. I flipped thru them quickly and they seem fairly sane:

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Thank you! Voted up and I'm definitely going to keep these links around, but I would really love to have find the article(s) I am referring to because that site also had tutorials for other subjects. Thanks though I appreciate it. – Jorge Israel Peña Jan 8 '10 at 21:51
you may wish to accept his answer! alongside upvoting him :) – JamesK Dec 17 '10 at 11:28

Dave Eisenberg wrote a tutorial for chmod which I found very useful. It starts out by describing the meaning of different permission settings and then continues on to detail making changes.

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