In Chapter 1, What and Why of Scripting with Bash, of this book we learned how to create a script and use some of its basics elements. These include optional parameters that we can pass through to the script when it is executed. In this chapter, we will extend this by using the read shell built-in command to allow for interactive scripts. Interactive scripts are scripts that prompt for information during the script execution. In doing so, we will cover the following topics:
Using
echo
with optionsBasic script using
read
Adding comments
Enhancing
read
scripts with promptsLimiting the number of entered characters
Control the visibility of the entered text
Simple scripts to enforce our learning