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Regular Expressions: Parsing Mailing List Data

Many regex engines also include the ability to create basic if-then-else statements, setting it so certain parts of the expression only match if specific parameters are met, allowing us to use a single expression to match a variety of options; this allows us more flexibility in how we write and use our expressions.

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Last updated
Clock icon Aug 08, 2025

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Table of Contents

  1. Challenge

    Create `mailing-list-report.txt`.

    Save the matched data to mailing-list-report.txt.

  2. Challenge

    Extract the "From" and "Subject" lines from the mailing list data.

    Craft a regular expression that extracts the desired data from the mailing list mbox file.

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