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Labs

Using the Command Line to Get Help

In this hands-on lab, we'll make use of documentation available from the command line to answer specific questions about a command or file. Man and info pages are readily available, useful sources of documentation on Linux commands and configuration files.

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Labs

Path Info

Level
Clock icon Beginner
Duration
Clock icon 30m
Published
Clock icon Jun 21, 2019

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Table of Contents

  1. Challenge

    Determine How Many Lines the File Contains

    1. The documentation found in the man and info pages suggests that the -l option may be used to determine the total number of lines.
    wc -l longfile.txt
    
    1. Run the command and output the result into a new file named value.txt.
    wc -l longfile.txt > value.txt
    
  2. Challenge

    Determine the Number of Characters on the Longest Line

    1. The documentation found in the man and info pages suggests that the -L option may be used to determine the number of characters on the longest line.
    wc -L longfile.txt
    
    1. Run the command and append the result to the value.txt file.
    wc -L longfile.txt >> value.txt
    
  3. Challenge

    Determine the Total Number of Characters in the File

    1. The documentation found in the man and info pages suggests that the -m option may be used to determine the total number of characters in the file.
    wc -m longfile.txt
    
    1. Run the command and append the result to the value.txt file.
    wc -m longfile.txt >> value.txt
    

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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.

Provided environment for hands-on practice

We will provide the credentials and environment necessary for you to practice right within your browser.

Guided walkthrough

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

Did you know?

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

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