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32.7. Regular Expressions: Match Any Character with . (Dot)

The dot (.) is one of those special metacharacters. By itself it will match any character except the end-of-line character. The pattern that will match a line with any single character is ^.$.

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32.6. Regular Expressions: Matching a Character with a Character SetBook Index32.8. Regular Expressions: Specifying a Range of Characters with [...]
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