Incorporating Substitutions in an Existing Backup Script

15 minutes
  • 2 Learning Objectives

About this Hands-on Lab

Bash scripting is an invaluable skill for a Linux system administrator. From writing quick scripts that automate simple tasks to writing complex scripts than can automatically deploy entirely new servers, scripting skills are integral to being a good SysAdmin. In this lab, we’ll integrate Bash command substitution into an existing backup script.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Modify the Backup Script as Requested

Using the date command and command substitution, add timestamps to the log file.

Run the Script and Verify the Files Are Backed up with the Requested Information

Mark the script as executable and run it, then verify that all files are backed up to the required directory.

Additional Resources

You work for Universe Incorporated. One of your users — cloud_user — has an already existing backup script. Using Bash command substitution, modify the script to include timestamps in the log file both before any work is done and after all work is complete.

Once complete, ensure it runs and successfully backs up the required files.

If you get stuck, feel free to check out the solution video or the detailed instructions under each objective. Good luck!

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