The Linux Community and a Career in Open Source

By Emmett Dulaney

The Linux Essentials exam covers the topic of the Linux community. The table shows the subtopics, weight, description, and key knowledge areas for this topic.

Breakout of Topic
Subtopic Weight Description Key Areas
Linux Evolution and Popular Operating Systems 2 Knowledge of Linux development and major distributions Open source philosophy; distributions; embedded systems
Major Open Source Applications 2 Awareness of major applications and their uses Desktop applications; server applications; mobile applications;
development languages; package management tools and
repositories
Understanding Open Source Software and Licensing 1 Open communities and licensing Open Source Software for
business
Licensing; Free Software Foundation (FSF), Open Source
Initiative (OSI)
ICT Skills and Working in Linux 2 Basic Information and Communication Technology (ICT) skills and
working in Linux
Desktop skills; getting to the command line; industry uses of
Linux, cloud computing and virtualization
To adequately address these topics, focus on these files,
terms, and utilities: Android; Apache; Audacity; Blender; BSD; C;
CentOS; Creative Commons; Debian; DHCP; DNS; Firefox; FLOSS; FOSS;
Gimp; GPR; ImageMagick; LibreOffice; MySQL; NFS; OpenLDAP;
OpenOffice.org; Password issues; Perl; PHP; Python; Postfix;
PostgreSQL; Privacy issues and tools; Samba; Shell; Terminal and
Console; and Thunderbird.

In addition, focus on these topics: Use of common open source applications in presentations and projects; using a browser; privacy concerns; configuration options; searching the web; and saving content.

Here are the top ten items to know as you study for this domain:

  1. Linux is the best-known example of open source software so far developed (and still in development).

  2. The shell is the command interpreter that resides between the user and the operating system. While a number of shells are available, the most common today is the bash shell.

  3. A plethora of applications and tools is available for use with the various Linux distributions. Many of these tools are also open source.

  4. The Apache Software Foundation distributes open source software under the Apache license that is Free and Open Source (FOSS).

  5. The Free Software Foundation (FSF) supports the free (open source) software movement and copyleft under the GNU General Public License. Copyleft makes it possible for modifications to be made to software while preserving the same rights in the produced derivatives.

  6. The Open Source Initiative (OSI) also supports the open source software movement, as does the GNOME Foundation, Ubuntu Foundation, and many other organizations.

  7. OpenOffice.org was a popular suite of open source office productivity software. LibreOffice is a fork of OpenOffice that has eclipsed it in popularity.

  8. Samba makes it possible for Linux systems to share files with Windows-based systems.

  9. Thunderbird is a popular mail and news client originally created by the Mozilla Foundation.

  10. A number of web browsers are available for Linux. The most popular currently is Firefox.