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Introduction to Linux

091 Labs workshop

Aaron Hastings

on 1 November 2011

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Transcript of Introduction to Linux

Introduction to Linux What is Linux? Linux is a free Operating System kernel,
which lays the foundation for some of the
fastest, most secure and advanced Operating
Systems we see today. Why should I use Linux
when I can just use Windows? Effectively virus-proof Starts up & shuts down in seconds. Windows 7 Home Premium costs €200.
Linux is free. As in beer. No crapware pre-installed. Most Linux software is
free and open-source Why choose Ubuntu?
Why not Fedora,
CrunchBang or Gentoo? It's really just a preference. Over the years Ubuntu has become widely known as a great Linux-based OS, with a pretty user-interface and a strong security backbone. Ubuntu has great built-in support for
peripherals and other devices such as
printers and graphics cards. What if I want to keep Windows on my computer? You can. And will.

Ubuntu simply installs alongside
Windows, giving you the option
to launch either OS at bootup. Ubuntu is stable, fast as lightning
and is far less likely to crash than
Windows. "Application Isolation" Applications in Linux are
detached from the OS. If an App crashes, it doesn't
take the Operating System
with it. Right, enough of that.
Time to install Ubuntu! Switch on your PC and quickly
put the Ubuntu disc into your
DVD drive.

Your computer should boot
automatically into the Ubuntu
installer. The first screen you'll see will be this Next up is the language select screen.
Choose your language and click
"Install Ubuntu 10.04 LTS". Assuming we're all in Ireland,
click on Ireland and click Forward. Choose your keyboard layout. Ireland is the default,
but some may prefer the American keyboard. At the "Who are you?" screen, enter your full name,
username, a secure password and the name of your
computer. A good name is usually:
yourFirstName-laptop Here we choose how much
space we want to give Ubuntu.

Select "Install them side by side..."
and use the slider below to give more
or less space to Ubuntu. We're ready to install!
Review the settings shown and if you're happy
with them, click "Install". Let's see what Canonical, Ubuntu's
parent company, have to say: This is GRUB. GRUB is a bootloader, a simple menu system for choosing which OS you wish to boot. "That's just because nobody uses Linux." - Generic Windows user Untrue! Linux uses an entirely different system
of "permissions" than Windows. Linux isolates users from each other by default. If I create a file called "secret_offshore_bank_details.txt", then Johnny from down the road can't see it. These rules also apply for other programs
and scripts. Files downloaded from the Internet aren't allowed to execute until you let them to.

To run an executable (.exe, .bin, .sh, etc.), you must confirm and prove your identity using your password.
Full transcript