Linux Essentials (temario)

Introduction

The Linux Community and a Career in Open Source

  • Linux Evolution and Popular Operating Systems
    • Key Knowledge Areas:
      • Desktop Applications
      • Server Applications
      • Development Languages
      • Package Management Tools and repositories
    • Terms and Utilities:
      • OpenOffice.org, LibreOffice, Thunderbird, Firefox, GIMP
      • Apache HTTPD, NGINX, MySQL, NFS, Samba
      • C, Java, Perl, shell, Python, Samba
      • dpkg, apt-get, rpm, yum
  • Understanding Open Source Software and Licensing
    • Key Knowledge Areas:
      • Licensing
      • Free Software Foundation (FSF), Open Source Initiative (OSI)
    • Terms and Utilities:
      • GPL, BSD, Creative Commons
      • Free Software, Open Source Software, FOSS, FLOSS
      • Open Source business models
  • ICT Skills and Working in Linux
    • Key Knowledge Areas:
      • Desktop Skills
      • Getting to the Command Line
      • Industry uses of Linux, Cloud Computing and Virtualization
    • Terms and Utilities:
      • Using a browser, privacy concerns, configuration options, searching the web and saving content
      • Terminal and Console
      • Password issues
      • Privacy issues and tools
      • Use of common open source applications in presentations and projects

Finding Your Way on a Linux System

  • Command Line Basics
    • Key Knowledge Areas:
      • Basic shell
      • Command line syntax
      • Variables
      • Globbing
      • Quoting
    • Terms and Utilities:
      • Bash
      • echo
      • history
      • PATH env variable
      • export
      • type
  • Using the Command Line to Get Help
    • Key Knowledge Areas:
      • Man
      • Info
    • Terms and Utilities:
      • man
      • info
      • Man pages
      • /usr/share/doc/
      • locate
  • Using Directories and Listing Files
    • Key Knowledge Areas:
      • Files, directories
      • Hidden files and directories
      • Home
      • Absolute and relative paths
    • Terms and Utilities:
      • Common options for ls
      • Recursive listings
      • cd
      • . and ..
      • home and ~
  • Creating, Moving and Deleting Files
    • Key Knowledge Areas:
      • Files and directories
      • Case sensitivity
      • Simple globbing and quoting
    • Terms and Utilities:
      • mv, cp, rm, touch
      • mkdir, rmdir

The Power of the Command Line

  • Archiving Files on the Command Line
    • Key Knowledge Areas:
      • Files, directories
      • Archives, compression
    • Terms and Utilities:
      • tar
      • Common tar options
      • gzip, bzip2
      • zip, unzip
  • Searching and Extracting Data from Files
    • Key Knowledge Areas:
      • Command line pipes
      • I/O re-direction
      • Basic Regular Expressions ., [ ], *, ?
    • Terms and Utilities:
      • grep
      • less
      • cat, head, tail
      • sort
      • cut
      • wc
  • Turning Commands into a Script
    • Key Knowledge Areas:
      • Basic shell scripting
      • Awareness of common text editors
    • Terms and Utilities:
      • #! (shebang)
      • /bin/bash
      • Variables
      • Arguments
      • for loops
      • echo
      • Exit status

The Linux Operating System

  • Choosing an Operating System
    • Key Knowledge Areas:
      • Windows, Mac, Linux differences
      • Distribution life cycle management
    • Terms and Utilities:
      • GUI versus command line, desktop configuration
      • Maintenance cycles, Beta and Stable
  • Understanding Computer Hardware
    • Key Knowledge Areas:
      • Hardware
    • Terms and Utilities:
      • Motherboards, processors, power supplies, optical drives, peripherals
      • Hard drives and partitions, /dev/sd*
      • Drivers
  • Where Data is Stored
    • Key Knowledge Areas:
      • Programs and configuration, packages and package databases
      • Processes, memory addresses, system messaging and logging
    • Terms and Utilities:
      • ps, top, free
      • syslog, dmesg
      • /etc/, /var/log/
      • /boot/, /proc/, /dev/, /sys/
  • Your Computer on the Network
    • Key Knowledge Areas:
      • Internet, network, routers
      • Querying DNS client configuration
      • Querying Network configuration
    • Terms and Utilities:
      • route, ip route show
      • ifconfig, ip addr show
      • netstat, ip route show
      • /etc/resolv.conf, /etc/hosts
      • IPv4, IPv6
      • ping
      • host

Security and File Permissions

  • Basic Security and Identifying User Types
    • Key Knowledge Areas:
      • Root and Standard Users
      • System users
    • Terms and Utilities:
      • /etc/passwd, /etc/group
      • id, who, w
      • sudo, su
  • Creating Users and Groups
    • Key Knowledge Areas:
      • User and group commands
      • User IDs
    • Terms and Utilities:
      • /etc/passwd, /etc/shadow, /etc/group, /etc/skel/
      • id, last
      • useradd, groupadd
      • passwd
  • Managing File Permissions and Ownership
    • Key Knowledge Areas:
      • File/directory permissions and owners
    • Terms and Utilities:
      • ls -l, ls -a
      • chmod, chown
  • Special Directories and Files
    • Key Knowledge Areas:
      • Using temporary files and directories
      • Symbolic links
    • Terms and Utilities:
      • /tmp/, /var/tmp/ and Sticky Bit
      • ls -d
      • ln -s