title: How can I break the sequence of wrongly typed commands in emacs?
body: <p>How can I break the sequence of wrongly typed commands in emacs? For example I type <code>M-x</code>, then I change my mind and decide to Copy a text. So I have to type <code>M-w</code>, but the problem is previously typed <code>M-x</code> . How can I effectively do this?</p>