After using some commands e.g. gitk I can't keep using the terminal. I need to terminate gitk and then I can keep typing commands. Is there a way to open a program and keep using the terminal? I'm using GitBash on Windows.
gitk &
The & causes the command to run in the background.
As an alternative, you can interrupt a program by pressing Control-Z in the terminal. This gives you back control of the command-line, but pauses the program. You can continue it in the background by typing
bg