Regex Intro

^[Rr]egular [Ee]xpressions$ Introduction

Vocabulary ,[object Object],[object Object],[object Object],[object Object]

Regular Expressions ,[object Object],[object Object],[object Object],[object Object],[object Object]

Egrep tool ,[object Object],[object Object],[object Object],[object Object]

My first regex ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Metacharacters: ^ and $ ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How to read regex ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

More simple regex’s ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Character Classes [ ] ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Character Classes cont. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Special characters in [ ]’s ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Negated character class [^ ] ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Translating regex practice ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Metacharacter: . (dot) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Periods cont. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Alternatives: | (pipe) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Pipes (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Regex practice ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

^ or $ and alternation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Case insensitive match ,[object Object],[object Object],[object Object],[object Object]

Quantifiers: ? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Quantifiers: + and * ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Summary of Quantifiers Minimum Required Maximum to try Meaning ? none 1 zero or one occurrence * none no limit zero or more occurrences + 1 no limit one or more occurrences

Escaping metacharacters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

More practice ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

More practice ,[object Object],[object Object],[object Object],[object Object],[object Object]

More practice ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Regex Intro

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Regex Intro