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Annotation of 42BSD/usr.lib/learn/editor/L30.2a, revision 1.1

1.1     ! root        1: #print
        !             2: Changing a whole line with the 'c' command is a slow way
        !             3: to work when you only want to change a few letters.  The 's' (substitute)
        !             4: command changes the letters within a line.  For example, the command
        !             5:   s/abc/def/
        !             6: will change a line reading
        !             7:   xxxabc
        !             8: into one reading
        !             9:   xxxdef
        !            10: by replacing the string 'abc' with 'def'.  Try the following sequence which
        !            11: alters the first line of the file 'test' within this directory:
        !            12: 
        !            13: ex test
        !            14: 1p
        !            15: s/months/years/
        !            16: 1p
        !            17: wq
        !            18: ready
        !            19: #create Ref
        !            20: Four score and seven years ago our
        !            21: fathers brought forth ...
        !            22: #create test
        !            23: Four score and seven months ago our
        !            24: fathers brought forth ...
        !            25: #user
        !            26: #cmp test Ref
        !            27: #log
        !            28: #next
        !            29: 30.2b 5

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