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Annotation of 43BSDTahoe/usr.lib/learn/editor/L33.2a, revision 1.1.1.1

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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