It is very nice of you to make a reply. 
I use bash more in VS Code. Pamac and Octopi are both installed by default( octopi with a cache cleaner) . In most case, use pamac is pretty fine.
Thanks for you advise. I’ll uninstall these three thing. 
It is very nice of you to make a reply. I use bash more in VS Code. Pamac and Octopi are both installed by default( octopi with a cache cleaner) . In most case, use pamac is pretty fine.
Thanks for you advise. I’ll uninstall these three thing.