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Annotation of 43BSD/usr.lib/learn/editor/L33.2a, revision 1.1

1.1     ! root        1: #print
        !             2: When you want to match one of a few specific characters,
        !             3: and not just anything, the pattern is similar to that used in
        !             4: file names. That is,
        !             5:   [abc]
        !             6: matches the letters 'a', 'b', or 'c', but nothing
        !             7: else.  Try this sequence and note what happens:
        !             8: 
        !             9: ex lines
        !            10: 1,$p
        !            11: 1s/[123]/9/
        !            12: 2s/[123]/9/
        !            13: 1,$p
        !            14: wq
        !            15: ready
        !            16: 
        !            17: (Remember that you can use '%' to abbreviate '1,$p'.)
        !            18: #create Ref
        !            19: 599
        !            20: 948
        !            21: #create lines
        !            22: 519
        !            23: 348
        !            24: #user
        !            25: #cmp lines Ref
        !            26: #log
        !            27: #next
        !            28: 33.2b 5

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