I'm new to linux. How to close GUI and go into pure shell mode in RedHat enterprise Linux 6? I don't want the GUI. I just want to learn some shell scripts.
you boot your server in run level 3 or you use CTRL+ALT+F2 go to terminal mode :)
To change the default runlevel in RedHat/CentOS/Fedora, edit
change to 3, then reboot the server