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Re: Using the bash shell: determine if the root user used 'sudo -i'

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On 26 Aug 2023 11:56 -0400, from greg@wooledge.org (Greg Wooledge):
> You don't actually need to know what was typed.

And even being able to answer the question "how was sudo executed"
doesn't solve the problem of ensuring that the script is executing
within a particular directory. All it takes is the user cd'ing to a
different directory before running the script.


> In fact, I suspect "I need to know if the cwd is /root" is STILL an X-Y
> problem.

Agreed.

Also, a few things worth noting:

* The current working directory will ALWAYS be ".". That's what "." at
the beginning of a relative path _means_. So testing the current
working directory against the actual path corresponding to "." will
always return a truthy result.

* The home directory of the root user won't necessarily be /root. By
convention it often is, but there's no guarantee that this is the
case.

* There can be multiple users with the same numerical user ID
(including 0), with different user names and home directories but
access to the same files. The BSDs do this often; Linux systems more
rarely so, but it's absolutely possible.

And that's just what I can think of off the top of my head.

-- 
Michael Kjörling                     🔗 https://michael.kjorling.se
“Remember when, on the Internet, nobody cared that you were a dog?”

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Using the bash shell: determine if the root user used 'sudo -i' Tom Browder <tom.browder@gmail.com> - 2023-08-26 16:30 +0200
  Re: Using the bash shell: determine if the root user used 'sudo -i' Roberto C. Sánchez <roberto@debian.org> - 2023-08-26 16:40 +0200
    Re: Using the bash shell: determine if the root user used 'sudo -i' Tom Browder <tom.browder@gmail.com> - 2023-08-26 18:00 +0200
      Re: Using the bash shell: determine if the root user used 'sudo -i' Greg Wooledge <greg@wooledge.org> - 2023-08-26 18:00 +0200
        Re: Using the bash shell: determine if the root user used 'sudo -i' Tom Browder <tom.browder@gmail.com> - 2023-08-26 18:10 +0200
          Re: Using the bash shell: determine if the root user used 'sudo -i' Nate Bargmann <n0nb@n0nb.us> - 2023-08-26 19:20 +0200
          Re: Using the bash shell: determine if the root user used 'sudo -i' Karl Vogel <vogelke@pobox.com> - 2023-08-27 01:10 +0200
            Re: Using the bash shell: determine if the root user used 'sudo -i' Greg Wooledge <greg@wooledge.org> - 2023-08-27 01:30 +0200
        Re: Using the bash shell: determine if the root user used 'sudo -i' Michael Kjörling <2695bd53d63c@ewoof.net> - 2023-08-26 18:20 +0200
        Re: Using the bash shell: determine if the root user used 'sudo -i' <tomas@tuxteam.de> - 2023-08-26 18:40 +0200
  Re: Using the bash shell: determine if the root user used 'sudo -i' Alain D D Williams <addw@phcomp.co.uk> - 2023-08-26 17:30 +0200
  Re: Using the bash shell: determine if the root user used 'sudo -i' <tomas@tuxteam.de> - 2023-08-26 17:50 +0200
    Re: Using the bash shell: determine if the root user used 'sudo -i' Tom Browder <tom.browder@gmail.com> - 2023-08-26 21:00 +0200
      Re: Using the bash shell: determine if the root user used 'sudo -i' tomas@tuxteam.de - 2023-08-26 21:20 +0200

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