GNU bug report logs - #10366
hello, i have a problem when i use chmod, can u explan why?thks

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: lidong_bit <lidong_bit <at> 126.com>
To: bug-coreutils <at> gnu.org
Subject: hello, i have a problem when i use chmod, can u explan why?thks
Date: Mon, 26 Dec 2011 02:51:21 +0800 (CST)

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in /var/, i have a directory:www, its property is:
d-w-------  2 root root  4096 2011-12-26 01:24 www
i want to change the property so that all the user have the write authority:
1.
administrator <at> ubuntu:/var$ sudo chmod a +w -R ./www/
chmod: invalid mode: `a'
Try `chmod --help' for more information.
administrator <at> ubuntu:/var$

2.
administrator <at> ubuntu:/var$ sudo chmod o +w -R ./www/
chmod: invalid mode: `o'
Try `chmod --help' for more information.
administrator <at> ubuntu:/var$


I don't why this happens, is it a buy? or is it forbidden?

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