Chapter 4. Listing Files and Managing Disk Usage

This hour introduces you to the ls command, one of the most commonly used commands in Unix. The discussion includes more than a dozen different command options, or flags. You also learn how to use the touch command to create files, how to use the du command to see how much disk space you're using, and how to use the df command to see how much disk space is available. Finally, the gzip command can help you minimize your disk space usage, particularly on files you do not use very often.

Goals for This Hour

In this hour, you will learn

  • All about the ls command

  • About special ls command flags

  • How to create files with touch

  • How to check disk space usage with du

  • How to check available disk space with df

  • How to ...

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