title: the result of curl command from mac bash is mixed with next command line
body: <p><img src="https://i.stack.imgur.com/PjWiJ.jpg" alt="wrong model show">  </p>
  
  <p><img src="https://i.stack.imgur.com/xPUBf.png" alt="right model show">  </p>
  
  <p>when typing 'curl' in mac bash,the result is mixed with the next command line. the model which i want is like the second pic.</p>