mments 7 3.2 Shell Commands 7 3.2.1 Simple Commands 8 3.2.2 Pipelines 8 3.2.3 Lists of Commands 8 3.2.4 Compound Commands 9 3.2.4.1 Looping Constructs 9 3.2.4.2 Conditional Constructs 10 3.2.4.3 Grouping Commands 13 3.3 Shell Functions 13 3.4 Shell Parameters 15 3.4.1 Positional Para