Regular Expression Patterns : Pattern matching « Regular Expression « Perl

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Perl » Regular Expression » Pattern matching

Regular Expression Patterns

    



Pattern     Interpretation

/a/         Looks for any instance of a.

/a+/        Matches one or more instances of a. 

/a*/        Matches zero or more instances of a.

/a?/        Matches zero or one instance of a.

/a|b/       Matches either a or b.

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