title: help - sed - insert space between any string of form XxxXxx, without replacing the pattern
body: <p>If the string is of the pattern <strong>XxxXyzAbc...</strong><br>
  The expected out put from sed has to be <strong>Xxx Xyz Abc ...</strong>  </p>
  
  <p>eg: if the string is <strong>QcfEfQfs</strong>, then the expected output is <strong>Qcf Ef Efs.</strong>  </p>
  
  <p>If i try to substitute the pattern <strong>[a-z][A-Z]</strong> with space then the sed will replace the character or pattern with space, like <strong>Qc f fs.</strong>  </p>
  
  <p>Is there any way to insert space in between without replacing the pattern ?.  </p>
  
  <p>Kindly help. Thanks.  </p>