<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=Big5" http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
<a class="moz-txt-link-abbreviated" href="mailto:linuxmaillists@charter.net">linuxmaillists@charter.net</a> wrote:<br>
<blockquote cite="mid200702081552.23255.linuxmaillists@charter.net"
type="cite">
<pre wrap="">On Thursday 08 February 2007 09:29, <a class="moz-txt-link-abbreviated" href="mailto:edwardspl@ita.org.mo">edwardspl@ita.org.mo</a>
wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Les Mikesell wrote:
</pre>
<blockquote type="cite">
<pre wrap=""><a class="moz-txt-link-abbreviated" href="mailto:edwardspl@ita.org.mo">edwardspl@ita.org.mo</a> wrote:
</pre>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite">
<pre wrap="">chmod g+rwx ( What number of g+rwx, eg : ?77 )
/home/edward
</pre>
</blockquote>
<pre wrap="">You can use the symbolic form literally. I think it's
easier to understand. Let the computer do the
binary/octal math. g+rwx means add the read, write,
and execute bits for the group.
</pre>
</blockquote>
<pre wrap="">But I want to know what no of g+rwx...
</pre>
</blockquote>
<pre wrap="">The + means it is added to the bits already permitted.
Look at them as groups of 3 bits in binary and take the
octal value.
user group other
rwx rwx rwx
You'll start with a home dir having rwx --- --- so
that's 111 000 000 binary or 700 octal.
Add the group rwx and you get 111 111 000 or 770 octal
</pre>
</blockquote>
<pre wrap="">So, g+rwx = 770, right ?
</pre>
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite">
<blockquote type="cite">
<pre wrap="">chmod +t ( What number of +t ) /home/edward
</pre>
</blockquote>
</blockquote>
</blockquote>
<pre wrap="">That's one more bit to the left, 1 000 000 000 binary,
so 1000 octal. Add that to what you have.
</pre>
<blockquote type="cite">
<blockquote type="cite">
<pre wrap="">Same here, you can type it that way and it means add
the "sticky" bit.
</pre>
</blockquote>
<pre wrap="">Also want to know...
</pre>
</blockquote>
<pre wrap="">Altogether, the octal value for the mode ends up at
1770. But, as I said before the computer does a better
job of thinking in octal.
</pre>
</blockquote>
<pre wrap="">So, +t = 1770, right ?
Edward.
</pre>
</blockquote>
<pre wrap=""><!---->
When I first started learning how to write the permissions
setting RWX I could not figure out how to do it using the
letters. I found it very easy to understand doing it with
the numbers. I type it like this chmod 777 <file> to get
the rwxrwxrwx and if I want to change it to rwxr-xr-x I
just type chmod 755 <file> and if I want rwx------ I type
chmod 700 <file>. I am sure I can figure out how to write
it with the letters now but I think it is much easier to
use the numbers.
</pre>
</blockquote>
<font size="-1">Hello,<br>
<br>
So...Do you know the following ( convert to the no format) ?<br>
<br>
</font>1, chmod g+rwx ( What number of g+rwx, eg : ?77 ) /home/edward
<br>
2, chmod +t ( What number of +t ) /home/edward<br>
<br>
Edward.<br>
</body>
</html>