how to start gui from ubuntu command line code example

Example 1: start Gui on your Ubuntu 20.04 system from cli

$ sudo systemctl isolate graphical

Example 2: start Gui on your Ubuntu 20.04 system from cli

$ sudo systemctl set-default graphical.target

Example 3: how can i give command for gui ubuntu

Ubuntu 12.04 LTS COMP-1245 tty1