Chapter 6. GNU and Unix Commands (Topic 103)

This Topic covers the essential skill of working interactively with Linux command-line utilities. Although it’s true that GUI tools are available to manage just about everything on a Linux system, a firm understanding of command-line utilities is required to better prepare you to work on any LSB-compliant Linux distribution.

The family of commands that are part of Linux and Unix systems have a long history. Individuals or groups that needed specific tools contributed many of the commands in the early days of Unix development. Those that were popular became part of the system and were accepted as default tools under the Unix umbrella. Today, Linux systems carry new and often more powerful GNU versions of these historical commands, which are covered in LPI Topic 103.1.

This LPI Topic has eight Objectives:

Objective 1: Work on the Command Line

This Objective states that a candidate should be able to interact with shells and commands using the command line. This includes using single shell commands and one-line command sequences to perform basic tasks on the command line, using and modifying the shell environment, including defining, referencing, and exporting environment variables, using and editing command history, and invoking commands inside and outside the defined path. Weight: 4.

Objective 2: Process Text Streams Using Filters

This Objective states that a candidate should be able to apply filters to text streams. Tasks include sending text ...

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