I have a situation where I need to provide a subshell to a user mid-way through a longish process. I would like to change the prompt to remind the user that they are in a special subshell and haven't gone through the rest of the process yet. I thought that this would do what I want...
echo "PS1='foo:'" | bash -i
But when I enter that line, this is the output I get
me@mercury:~$ PS1='foo:' foo:exit me@mercury:~$
Is there a simple way around this? I could writeup my own custom bashrc... but I'd prefer to preserve the user's usual bash-shell setup.