One of most common typos is to repeat the same word twice, as as here. I need an automatic procedure to remove all the repeated words in a text file. This should not be a strange feature for a modern editor or spell-checker, for example I remember that MS Word introduced this feature several years ago! Apparently, the default spell-check on my OS (hun-spell) can't do this, as it only finds words not in the dictionary.
It would be OK to have a solution valid for a specific text editor editor for linux (pluma/gedit2 or Sublime-text) and a solution based on a bash script.