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Annotation of 42BSD/usr.lib/learn/editor/L19.2a, revision 1.1

1.1     ! root        1: #print
        !             2: To avoid just accumulating lines forever, you need some
        !             3: way of getting rid of them.  The 'd' command (delete) removes
        !             4: lines you don't want.  Since it also removes lines that
        !             5: you do want if you tell it to, you should be careful
        !             6: with this command.  Deleting one line at a time
        !             7: is always pretty safe.  For example
        !             8:   5d
        !             9: will delete line 5 of a file.  Try the following
        !            10: sequence; note that I've used "cat"
        !            11: for a change.
        !            12: 
        !            13: cat bmt
        !            14: ex bmt
        !            15: 5d
        !            16: wq
        !            17: cat bmt
        !            18: ready
        !            19: #create Ref
        !            20: 14th st
        !            21: 23rd st
        !            22: 28th st
        !            23: 34th st
        !            24: times square
        !            25: 49th st
        !            26: 57th st
        !            27: #create bmt
        !            28: 14th st
        !            29: 23rd st
        !            30: 28th st
        !            31: 34th st
        !            32: 42nd st
        !            33: times square
        !            34: 49th st
        !            35: 57th st
        !            36: #user
        !            37: #cmp bmt Ref
        !            38: #log
        !            39: #next
        !            40: 19.3b 3
        !            41: 19.2c 8

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