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Using the Command Line Objectives Use a terminal to run commands. Linux Text Interface Before screens were common on computers, the operating system output was displayed on automated typewriters connected to a mainframe over a telephone line. Modern computers use a text interface to interact with system features. The Linux text interface is technically known as the TTY, which stands for teletypewriter. This type of interface is commonly referred to as a command-line interface (CLI). Multiple Login Sessions Linux runs virtual consoles to allow users independent login sessions. These virtual consoles are also referred to as TTY consoles. The first TTY runs the GNOME Desktop Manager (GDM) service, in which you log in to the system. When you log in to the GNOME desktop, your session occupies the second TTY automatically. Even with a graphical environment enabled, you can log in to your local machine by using a text-only console. To use a text-only console, switch to an unused TTY. For exam...

Chapter 2. Accessing a Linux System Log in to a Local Linux System Guided Exercise: Log in to a Local Linux System Using the Command Line Guided Exercise: Using the Command Line Lab: Accessing a Linux System Summary Abstract Goal  Interact with the GNOME desktop, and query the terminal environment. Sections  Log in to a Local Linux System (and Guided Exercise) Using the Command Line (and Guided Exercise) Lab  Accessing a Linux System Log in to a Local Linux System Objectives Log in to a Linux system by using the GNOME desktop manager (GDM) and a text-based console. The Multiuser Linux System The Linux operating system is designed to support multiple concurrent users. Each person using the computer can have a personal account on the system. After you log in, you can create and save data in your own home directory, which is separate from any other user. Instead of sharing login credentials, each user owns a unique login account. This practice provides privacy to each user ...

Guided Exercise: Linux Distributions Identify the Linux distribution of your system. Outcomes Launch the system settings control panel for the GNOME desktop. Identify the Linux distribution that is running on your system. As the student user on the workstation machine, use the lab command to prepare your environment for this exercise, and to ensure that all required resources are available. [student@workstation ~]$ lab start intro-distributions Instructions Click Activities in the upper left of your desktop. Alternatively, press the Super key (the key with the Windows logo, or the Command logo on a Mac). In the search field, type Settings. Click Settings, or press Enter on your keyboard. Figure 1.1: Application grid In the Settings window, scroll to the end of the list in the left panel and click About. In the About panel that appears on the right, review the OS Name field, and verify that it lists Red Hat Enterprise Linux (RHEL). The About panel also displays t...

Performing Lab Exercises You might see the following lab activity types in this course: A guided exercise is a hands-on practice exercise that follows a presentation section. It walks you through a procedure to perform, step by step. A quiz is typically used when checking knowledge-based learning, or when a hands-on activity is impractical for some other reason. An end-of-chapter lab is a gradable hands-on activity to help you to check your learning. You work through a set of high-level steps, based on the guided exercises in that chapter, but the steps do not walk you through every command. A solution is provided with a step-by-step walk-through. A comprehensive review lab is used at the end of the course. It is also a gradable hands-on activity, and might cover content from the entire course. You work through a specification of what to accomplish in the activity, without receiving the specific steps to do so. Again, a solution is provided with a step-by-step walk-through that meets t...

Orientation to the Classroom Environment Figure 0.1: Classroom environment In this course, the main computer system for hands-on learning activities is  workstation . Students also use another machine for these activities:  servera . The two systems are in the  lab.example.com  DNS domain. All student computer systems have a standard user account,  student , which uses the password  student . The  root  user password on all student systems is  redhat . Table 1. Classroom Machines Machine name IP address Role bastion.lab.example.com 172.25.250.254 Gateway system to connect the student private network to the classroom server (must always be running) classroom.example.com 172.25.254.254 Server that hosts the required classroom materials workstation.lab.example.com 172.25.250.9 Graphical workstation for student use servera.lab.example.com 172.25.250.10 Managed server "A" The primary function of the  bastion  machine is to act ...

Getting Started with Linux Fundamentals Getting Started with Linux Fundamentals is an introduction intended for users and developers to acclimate to the Red Hat Enterprise Linux desktop and command-line interfaces. Course Objectives Prepare candidates for their adoption of Red Hat Enterprise Linux 9. Audience Individuals new to Red Hat Enterprise Linux who are planning to access Linux systems for their future work or course work. Prerequisites Familiarity with basic computer components: mouse, keyboard, monitor.