Re: sudo question

[Keith Bainbridge <keithrbau@gmail.com>]

Sounds like making bin/mask.sh executable by root ONLY might help you forget to use sudo to run it

Sudo chmod /bin/mask.sh  x=r    should do it

--
All the best

Keith Bainbridge

keithrbau@gmail.com
+61 (0)447 667 468

GMT+ 10:00
Sent from my Aphone.  Please excuse my brevity.

On 21 November 2024 9:49:00 am AEDT, Greg Wooledge <greg@wooledge.org> wrote:

On Thu, Nov 21, 2024 at 06:17:31 +0800, Bitfox wrote:
sudo echo "something" >>/etc/postfix/virtual_alias_maps

https://mywiki.wooledge.org/BashPitfalls#pf53

Can you help me why the first sudo failed?

The redirection >> is being done before sudo is executed.