In this chapter we learned about different types elements of computation, that is, expressions in AWK. We learned how they are made up of different types of constants and variables. Then we learned about building different types of expressions using unary, binary, assignment, arithmetic, and Relational operators. Then we covered the ternary operator and string concatenation. Finally, we understood regular expression operators and their usage, followed by operator precedence.
In the next chapter, we will learn about the usage of different control flow statements in AWK programs.