The next examples show how fossil behaves if you have not defined the EDITOR or VISUAL shell variables. If EDITOR or VISUAL are defined, fossil will use that editor instead of prompting you on the command line:

    $ echo "example" >example.txt
    $ fossil add example.txt
    ADDED  example.txt

    $ fossil commit
    # Enter a commit message for this check-in. Lines beginning with #   
    are ignored.
    #
    # user: clif
    # tags: trunk 
    #
    # ADDED      example.txt

    $ echo "Line 2" >>example.txt
    $ fossil commit
    # Enter a commit message for this check-in. Lines beginning with #    
    are ignored.
    #
    # user: clif
    # tags: trunk
    #
    # EDITED     example.txt