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Indenting Text and Removing Whitespace with Emacs

In this lab, you will be adding and removing whitespace from text files. Basic knowledge of opening files, along with familiarity of working with Emacs whitespace, is recommended. Upon completing this lab, you will know how to work with whitespace in Emacs and how to use line and region indentation.

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 30m
Last updated
Clock icon Jul 20, 2025

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Table of Contents

  1. Challenge

    Open the Files

    • Open the file /tmp/remove_whitespace.
    • Open the file /tmp/add_indentation.

  2. Challenge

    Correct Whitespace

    • Remove all the empty lines from the file /tmp/remove_whitespace.
    • Remove leading and trailing whitespace from /tmp/remove_whitespace.

  3. Challenge

    Correct Indentation

    • Follow the instructions in Section 1 of the file /tmp/add_indentation to complete the line indentation.
    • Follow the instructions in Section 2 of the file /tmp/add_indentation to complete the region indentation.
Pluralsight Skills - Labs - Pluralsight
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Pluralsight Skills

Pluralsight Skills gives leaders confidence they have the skills needed to execute technology strategy. Technology teams can benchmark expertise across roles, speed up release cycles and build reliable, secure products. By leveraging our expert content, skill assessments and one-of-a-kind analytics, keep up with the pace of change, put the right people on the right projects and boost productivity. It's the most effective path to developing tech skills at scale.

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

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Follow along with the author’s guided walkthrough and build something new in your provided environment!

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On average, you retain 75% more of your learning if you get time for practice.
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