Brian May <br...@microcomaustralia.com.au> writes:
> On 26 September 2014 12:08, Russ Allbery <r...@debian.org> wrote:
>>
>> I think you have that backwards, don't you?  Shouldn't that be:
>>
>>     echo='() { /bin/echo bar; }' sudo bash

> I think sudo treats both as the same/similar thing.

That would surprise me.  In one case, you're setting an environment
variable and then running sudo.  In the other case, you're telling sudo to
run the command "echo='() { /bin/echo bar; }' echo foo" via a shell.  In
other words, with your original command, the actual command that you're
running with sudo is probably something like:

    /bin/bash -e "echo='() { /bin/echo bar; }' echo foo"

and sudo itself never sees your environment setting.

sudo controls whether it's willing to pass arbitrary environment variables
to the command it runs with the env_reset, env_keep, and env_check
options.

-- 
Russ Allbery (r...@debian.org)               <http://www.eyrie.org/~eagle/>


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