Summary

In this chapter, you learned how to create Bash scripts in Linux. You now know about shell variables and script variables, as well as how to use programming structures such as loops, conditionals, and arrays inside scripts. You now further understand how interprocess communication works. The skills you have learned will help you create scripts in any Linux distribution. When you are creating scripts, you will put your text editor knowledge into action too. You will use the skills that you’ve learned regarding Bash scripting in many aspects of your everyday job as a system administrator too.

In the next chapter, you will learn how to manage security in Linux, the access control mechanisms, AppArmor and SELinux, and firewalls. This skill is important for any administrator and must be part of any advanced training.