title: Prevent overwriting of files when using Scp
body: <p>I was copying some files using scp and i don't want to overwrite the already present  files.</p>
  
  <p>If i was using cp command, i think this can be done using cp -n.</p>
  
  <p>Is there a similar option for scp, i went through the documentation of SCP and there seems to be no such option.</p>
  
  <p>Is rsync or sftp the way to go solve this problem?</p>
  
  <p>Addition Info: </p>
  
  <p>OS: Ubuntu 12.04</p>