lightweight GTK+ clipboard manager
 Parcellite is a stripped down, basic-features-only clipboard manager
  with a small memory footprint for those who like simplicity.
  .
  Features:
  .
   * Keeps a clipboard history.
   * Various view options to display items the way you like it.
   * Daemon mode; guard your clipboard contents when you close applications.
   * Perform custom commands using clipboard contents.
Manual and Help Documents