How to start a shell without any user configuration?

Question

I need to use a "clean" shell (e.g. bash) under Linux/OSX terminal without any user configuration, but it reads config info from some files (e.g ~/.bashrc) every time it starts. I can modify the file every time I need a "clean" shell, and revert it back when I finished, but is there any easier ways to do this, for example a command?

Answer 1

Running bash --noprofile --norc still inherited from parent process. Based on a similar question I found that the way I interpreted this question env -i bash --norc --noprofile was what I would want.

Answer 2

You can pass the --noprofile and --norc command-line options:

$ bash --noprofile --norc 

You will find documentation about these options in the man page.