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)

[Message part 1 (text/plain, inline)]

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?

[Message part 2 (text/html, inline)]

Message #10 received at 10366-done <at> debbugs.gnu.org (full text, mbox):

From: Pádraig Brady <P <at> draigBrady.com>
To: lidong_bit <lidong_bit <at> 126.com>
Cc: 10366-done <at> debbugs.gnu.org
Subject: Re: bug#10366: hello, i have a problem when i use chmod, can u explan
	why?thks
Date: Mon, 26 Dec 2011 16:41:28 +0000

tags 10366 notabug

On 12/25/2011 06:51 PM, lidong_bit wrote:
> 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'

You should not put a space after 'a'.
Please try: chmod a+w ...

cheers,
Pádraig.

Message #15 received at submit <at> debbugs.gnu.org (full text, mbox):

From: ilusionoflife <illusion.of.life92 <at> gmail.com>
To: bug-coreutils <at> gnu.org
Subject: Re: bug#10366: hello, i have a problem when i use chmod,
	can u explan why?thks
Date: Mon, 26 Dec 2011 19:09:36 +0400

On Sunday 25 December 2011 22:51:21 lidong_bit wrote:
> 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?
You are not allowed to use space between first letter and plus sign. 
I am not specialist to say if this behavior comforms to any standarts.

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