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

[Greg Wooledge <greg@wooledge.org>]

On Sat, Aug 26, 2023 at 06:42:42PM -0400, Karl Vogel wrote:
> If you're running bash, the safest way to find your current working
> directory is capturing the output from /bin/pwd.  Symlinked directories
> can surprise you:
> 
>     me$ cd
> 
>     me$ ls -ldF today
>     lrwxr-xr-x  1 me mis   18 Aug 26 00:03 today@ -> notebook/2023/0826
> 
>     me$ cd today
> 
>     me$ pwd
>     /home/me/today
> 
>     me$ /bin/pwd
>     /home/me/notebook/2023/0826
> 
>     me$ echo $PWD
>     /home/me/today

unicorn:~$ help pwd
pwd: pwd [-LP]
    Print the name of the current working directory.
    
    Options:
      -L	print the value of $PWD if it names the current working
    		directory
      -P	print the physical directory, without any symbolic links
    
    By default, `pwd' behaves as if `-L' were specified.
    [...]

Of course, this is all a big tangent from the original request.