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A simple shell command such as echo a b c
consists of the command
itself followed by arguments, separated by spaces.
More complex shell commands are composed of simple commands arranged together in a variety of ways: in a pipeline in which the output of one command becomes the input of a second, in a loop or conditional construct, or in some other grouping.
3.2.1 Simple Commands | The most common type of command. | |
3.2.2 Pipelines | Connecting the input and output of several commands. | |
3.2.3 Lists of Commands | How to execute commands sequentially. | |
3.2.4 Looping Constructs | Shell commands for iterative action. | |
3.2.5 Conditional Constructs | Shell commands for conditional execution. | |
3.2.6 Grouping Commands | Ways to group commands. |