title: How to clear Jupyter Notebook's output in all cells from the Linux terminal?
body: <p>I have a problem when the output from a notebook is really long and it's saved into the notebook, any time I want to open this particular notebook again the browser crashes and can't display correctly.</p>
  
  <p>To fix this I have to open it with a text editor and delete all output from that cell causing the problem.</p>
  
  <p>I wonder if there is a way to clean all output from the notebook so one can open it again without problem. I want to delete all output since deleting a specific one seems more troublesome.</p>