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Annotation of 43BSDTahoe/usr.lib/learn/editor/L38.2a, revision 1.1

1.1     ! root        1: #print
        !             2: Sometimes you want to recognize a string of characters
        !             3: only if they appear at the beginning of the line.
        !             4: The character '^' is used for this purpose.  The
        !             5: command
        !             6:   s/^ab/xy/
        !             7: will change "ab" to "xy" only if "ab" begins the line.
        !             8: Try the following and watch what it does.
        !             9: 
        !            10: ex file
        !            11: 1,2p
        !            12: 1,2s/^ab/xy/
        !            13: wq
        !            14: ready
        !            15: #create Ref
        !            16: xycd
        !            17:   abcd
        !            18: #create file
        !            19: abcd
        !            20:   abcd
        !            21: #user
        !            22: #cmp file Ref
        !            23: #log
        !            24: #next
        !            25: 38.2b  5

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