title: Linux delete spaces after a character in a line
body: <p>In Linux, if I have a file with entries like:</p>
  
  <blockquote>
    <p>My Number is = 1234; #This is a random number</p>
  </blockquote>
  
  <p>Can I use sed or anything else to replace all spaces after '#' with '+', so that the output looks like:</p>
  
  <blockquote>
    <p>My Number is = 1234; #This+is+a+random+number</p>
  </blockquote>