A simple if/else bash script which reacts to user's yes/no input?
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I basically have a bash script which executes 5 commands in a row. I want to add a logic which asks me "Do you want to execute command A" and if I say YES, the command is executed, else the script jumps to another line and I see the prompt "Do you want to execute command B". 

The script is very simple and looks like this

    echo "Running A"
    commandA &
    sleep 2s;
    echo "done!"
    
    echo "Running B"
    commandB &
    sleep 2s;
    echo "done!"
    ...