Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Computer terminal wikipedia , lookup
Plan 9 from Bell Labs wikipedia , lookup
Copland (operating system) wikipedia , lookup
Mobile operating system wikipedia , lookup
Mandriva Linux wikipedia , lookup
Caldera OpenLinux wikipedia , lookup
Linux adoption wikipedia , lookup
Unix security wikipedia , lookup
Click the speaker for audio Objectives Understand the purpose of the superuser account Outline the key features of the Linux desktops Navigate through the menus Getting help Using Virtual Consoles 1 Two different types of programs are executed on a computer: ◦ Applications ◦ Operating system (OS) software User Interface: An application program that allows the user to interact with the OS and other application programs ◦ GUI ◦ Terminal 2 Figure 1-1: The role of operating system software 3 Graphical user interface (GUI): Component of an OS that provides a user-friendly interface System services: Applications that handle system-related tasks ◦ Printing ◦ Scheduling programs ◦ Network access 4 A Linux graphical user interface 5 OS used to run a variety of applications on a variety of different hardware Has the ability to manage thousands of tasks at the same time Allows multiple users to access the system simultaneously ◦ Multiuser and multitasking OS 6 There is one administrative account that has “all power”. It is called root This account can make changes to the operating system file system, install and upgrade software This account can also delete and change critical system files which can potentially disable the system Linux is literal, and usually results are immediate Use the root account with care! You can access root privileges without being logged in a sthe root account by running the command at a terminal prompt su If you attempt to make changes to system services and configuration when using the Graphical User Interface, you will be challenged for the password for the user root. 7 We will rarely be looking at the Linux desktop during this course The textbook examples use the Desktop manager KDE, so I will use the GNOME desktop in my examples. 8 Click the link below for a short tutorial on the GNOME desktop Desktop Tour Tutorial This will open a web browser and begin a demonstration. 9 Linux documentation can be found on the Internet ◦ Frequently Asked Questions (FAQs) ◦ HOWTO documents Linux Newsgroups Linux User Group (LUG): Open forum of Linux users who discuss and assist each other in using and modifying the Linux OS 10 Using Info Using man Using --? ◦ Both of these are described in the tutorial at ◦ http://faculty.skagit.edu/imageuploads/repository161.mov 11 Workstation services: Replacing the Windows and Mac computer with the FREE operating system. Server services: Linux can be found hosting many web servers, DNS servers and other server functions. Google using Linux to run their search engine. 12