title: How do I append a file to the start of a destination file without an intermediary file?
body: <p>I want to append the file toppart_ABC.txt (containing 'ABC') to the start of destinationfile_DEF.txt (containing 'DEF') without an intermediary file.</p>
  <p>If I try</p>
  <pre><code>Add-Content -Path .\destinationfile_DEF.txt -Value (Get-Content .\toppart_ABC.txt)
  </code></pre>
  <p>This changes the right file, destinationfile_DEF.txt, but has wrong content - it puts the text at the bottom i.e. defabc</p>
  <p>If I try</p>
  <pre><code>Add-Content -Path .\toppart_ABC.txt -Value (Get-Content .\destinationfile_DEF.txt)
  </code></pre>
  <p>This changes the wrong file toppart_ABC.txt, but has the right content i.e. abcdef</p>
  <p>Ideally looking for a one liner, but not vital</p>