Temporary alternative --config for curent bash session

Question

I need to use two different versions of some program in Linux. I can switch between two program versions via alternatives --config "program-name". So my question is how I cat do this command for current bash session locally without changing global system settings?

I think it kinda chroot command.

Answer 1

This might not be sufficient, but you could add

alternatives --auto program-name

to your .bash_logout file. Then use alternatives --config program-name. This would make it a global change, but return it to its previous state when you log out.