trick question about sudo
strange at nsk.no-ip.org
Mon Feb 18 18:46:44 UTC 2008
On Mon, Feb 18, 2008 at 07:43:09PM +0100, Valent Turkovic wrote:
> I have one question about sudo.
> While looking for uid/gid override for samba mounts I found this solution:
> sudo echo 0 > /proc/fs/cifs/LinuxExtensionsEnabled
> But this obviously doesn't work on Fedora but this works:
> sudo sh -c 'echo 0 > /proc/fs/cifs/LinuxExtensionsEnabled'
> But the trick question is in which setups and which circumstances can
> the first sudo work?
Only when your current user (not the one you're sudoing to) can write
The redirection is made by the shell, before running sudo, so it has to
be able to open the specified file for output.
The example you found is obviously wrong.
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