How to write sh script with relogin?

Question

linux

Hello guys. Wrote a script that installs the necessary software on my bare ubuntu server. So bad luck after installing one of the packages, you need to either reboot or relogin the user. How to write such a script so that the remaining software is installed after a reboot? This program cannot be moved to the end of the list. it's rvm along with ruby. After this installation, ruby ​​gems should be installed. Is there such a possibility or have I rolled my lip a lot?

Answer 1

sudo -u user