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Hello, |
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|
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On Wed, 23 Jan 2019, Adam Carter wrote: |
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>> $ printf '0.1.2.3 01.2.3.4 1.2.3.0 1.2.000.3\n' | \ |
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>> sed 's/0*\([[:digit:]]\+\)/\1/g' |
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>> 0.1.2.3 1.2.3.4 1.2.3.0 1.2.0.3 |
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> |
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>So [[:digit:]] is another way of writing [0-9] and the + just means another |
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>instance of the proceeding expression, right, so your and Francois |
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>solutions are functionally the same, and all the following are the same |
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>too, right? |
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|
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Not quite. |
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|
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[[:digit:]]+ == [0-9][0-9]* |
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|
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Not too, that [:digit:] respects locale. Don't know where locale |
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applies though. Probably Devanagari or such. I just made myself to use |
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classes rather than char-ranges. See man 7 regex for more classes. |
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|
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HTH, |
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-dnh |
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|
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-- |
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"UNIX was not designed to stop people from doing stupid things, because |
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that would also stop them from doing clever things." -- Doug Gwyn |
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