Learn Linux Shell Scripting - Fundamentals of Bash 4.4

Summary

This chapter was dedicated to conditional testing and scripting loops. Since we had already discussed the if-then-else statements, we recapped on this information before going on to showing more advanced uses of the conditional testing toolkit. This advanced information included using regular expressions, which we learned about in the previous chapter, within a conditional testing scenario to allow for more flexible tests. We also showed you how multiple conditions can be tested sequentially, using elif (short for else if). We explained how multiple if-then-else statements can be nested to create advanced logic.

In the second part of this chapter, we introduced the while loop. We showed you how we can use this to create a script that ...