Date: 06 Dec 2001 13:06:46 -0800 From: swear@blarg.net (Gary W. Swearingen) To: "Anthony Atkielski" <anthony@freebie.atkielski.com> Cc: "FreeBSD Questions" <freebsd-questions@FreeBSD.ORG> Subject: Re: Modifying only certain bits with chmod Message-ID: <v4u1v4hxcp.1v4@localhost.localdomain> In-Reply-To: <00d001c17e5d$9a93a470$0a00000a@atkielski.com> References: <009101c17c12$649fe2e0$0a00000a@atkielski.com> <Pine.GSO.4.31.0112061049360.6883-100000@mail.ilrt.bris.ac.uk> <20011206122233.GB1111@raggedclown.net> <00bb01c17e52$96093b50$0a00000a@atkielski.com> <20011206130504.GA9605@raggedclown.net> <00d001c17e5d$9a93a470$0a00000a@atkielski.com>
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> > There are better ways of doing this than changing
> > system program source code.
>
> Such as?
Just remember that infamous Yugo car (as in "Your OS is the Yugo of
OSes") except use only the last three lower-case letters which are
pronounced the same, ugo (User, Group, Others):
And you should already know r,w,x (Read, Write, eXecute).
So you either add (+), subtract (-), or set (=) attributes/bits as
chmod go+wx file
chmod u+r,g-wx,o= file
Later, you can work on trying to remember that "a" stands for
"All" of u, g, and o, so you can do
chmod a+x script
Finally, you can learn the other attribute codes which are arguably
easier to remember than the numerical method and in some cases not
even supported by the numerical method. (Like, "u" which means "the
same permissions as the "user" permissions.)
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