How one can unsource .sh format files?

Question

Suppose that I have sourced a bunch of .sh files via a single file as

source .bash_profile

Now, I want to use another installation. How can I un-source them before sourcing other .sh files? Is it even possible?

Answer 1

There is no source history enabling you to do that.

If you want to run certain commands while having sourced certain files, you may run them in a new shell. Say:

sh -c "source your-env.sh; some-command.sh"