Emacs classer, effacer les doublons, effacer par patterns
Playing with lines in #Emacs:
M-x sort-lines
M-x delete-matching-lines
M-x delete-non-matching-lines
M-x delete-duplicate-lines
Playing with lines in #Emacs:
M-x sort-lines
M-x delete-matching-lines
M-x delete-non-matching-lines
M-x delete-duplicate-lines