Server Infrastructure Linux Fundamentals (L-120)

Linux Fundamentals (L-120)

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  • Course Delivery: Virtual Classroom
  • Duration: 5 
  • Language: English

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Description

The GL120 is a challenging course that focuses on the fundamental tools and concepts of Linux and UNIX. Students gain proficiency using the command line. Beginners develop a solid foundation in UNIX, while advanced users discover patterns and fill in gaps in their knowledge. Like all Guru Labs courses, the course material is designed to provide extensive hands-on experience.

 

Course Objectives

After completing this course, students will learn:
  • Basic file manipulation
  • Basic and advanced filesystem features
  • I/O redirection and pipes
  • Text manipulation and regular expressions
  • Managing jobs and processes
  • Automating tasks with shell scripts
  • Managing software
  • Secure remote administration
 

Topics Covered

1. What is Linux?
  • Unix and its Design Principles
  • FSF and GNU
  • GPL – General Public License
  • The Linux Kernel
  • Linux Kernel and Versioning
  • Components of a Distribution
  • Slackware
  • SUSE Linux Products
  • Debian
  • Ubuntu
  • Red Hat Linux Products
  • Oracle Linux

2.Login and Exploration
  • Logging In
  • Running Programs
  • Interacting with Command Line
  • The X Window System
  • Starting X
  • Gathering Login Session Info
  • Gathering System Info
  • uptime
  • got root?
  • Switching User Contexts
  • Sudo
  • Help from Commands and Documentation
  • Getting Help Within the Graphical Desktop
  • Getting Help with man & info
  • Lab Tasks
  • Login and Discovery
  • Help with Commands
  • Switching Users With su

3.The Linux Filesystem
  • Filesystem Support
  • Unix/Linux Filesystem Features
  • Filesystem Hierarchy Standard
  • Navigating the Filesystem
  • Displaying Directory Contents
  • Filesystem Structures
  • Determining Disk Usage With df and du
  • Determining Disk Usage (GUI)
  • Disk Usage with Quotas
  • File Ownership
  • Default Group Ownership
  • File and Directory Permissions
  • File Creation Permissions with umask
  • SUID and SGID on files
  • SGID and Sticky Bit on Directories
  • Changing File Permissions
  • User Private Group Scheme
  • Lab Tasks
  • Navigating Directories and Listing Files
  • Disk and Filesystem Usage
  • File and Directory Ownership and Permissions

4.Manipulating Files
  • Directory Manipulation
  • File Manipulation
  • Deleting and Creating Files
  • Physical Unix File Structure
  • Filesystem Links
  • File Extensions and Content
  • Displaying Files
  • Previewing Files
  • Producing File Statistics
  • Displaying Binary Files
  • Searching the Filesystem
  • Alternate Search Method

Lab Tasks
  • Manipulating Files and Directories
  • File Examination & Search Commands

5. Shell Basics
  • Role of Command Shell
  • Communication Channels
  • File Redirection
  • Piping Commands Together
  • Filename Matching
  • File Globbing and Wildcard Patterns
  • Brace Expansion

Lab Tasks
  • Redirection and Pipes
  • Wildcard File Matching
  • Shell Variables
  • Shell Meta-Characters
  • Command Substitution

6.Archiving and Compression
  • Archives with tar
  • Archives with cpio
  • The gzip Compression Utility
  • The bzip2 Compression Utility
  • The XZ Compression Utility
  • The PKZIP Archiving/Compression format
  • GNOME File Roller

Lab Tasks
  • Archiving and Compression

7. Text Processing
  • Searching Inside Files
  • The Streaming Editor
  • Text Processing with Awk
  • Replacing Text Characters
  • Text Sorting
  • Duplicate Removal Utility
  • Extracting Columns of Text
  • Combining Files and Merging Text
  • Comparing File Changes

Lab Tasks
  • Processing Text Streams
  • Text Processing

8. Regular Expressions
  • Regular Expression Overview
  • Regular Expressions
  • RE Character Classes
  • Regex Quantifiers
  • RE Parenthesis

Lab Tasks
  • Pattern Matching with Regular Expressions
  • Extended Regular Expressions
  • Using Regular Expressions With sed

9. Text Editing
  • Text Editing
  • Pico/GNU Nano
  • Pico/Nano Interface
  • Nano configuration
  • Pico/Nano Shortcuts
  • vi and Vim
  • Learning Vim
  • Basic vi
  • Intermediate vi

Lab Tasks
  • Text Editing with Nano
  • Text Editing with Vim

10. Messaging
  • System Messaging Commands
  • Controlling System Messaging
  • Internet Relay Chat
  • Instant Messenger Clients
  • Electronic Mail
  • Sending Email with sendmail
  • Sending and Receiving Email with mailx
  • Sending and Receiving Email with mutt
  • Sending Email with Pine
  • Evolution

Lab Tasks
  • Command Line Messaging
  • Messaging with talkd
  • Command Line Email
  • Alpine

11. Command Shells
  • Shells
  • Identifying the Shell
  • Changing the Shell
  • Configuration Files
  • Script Execution
  • Shell Prompts
  • Bash: Bourne-Again Shell
  • Bash: Configuration Files
  • Bash: Command Line History
  • Bash: Command Editing
  • Bash: prompt
  • Setting Resource Limits via ulimit

Lab Tasks
  • Linux Shells
  • Bash History
  • Aliases
  • Bash Login Scripts
  • The Z Shell

12. Introduction to Shell Scripting
  • Shell Script Strengths and Weaknesses
  • Example Shell Script
  • Positional Parameters
  • Input & Output
  • Doing Math
  • Comparisons with test
  • Exit Status
  • Conditional Statements
  • Flow Control: case
  • The for Loop
  • The while and until Loops

Lab Tasks
  • Writing a Shell Script

13. Process Management and Job Control
  • What is a Process?
  • Process Lifecycle
  • Process States
  • Viewing Processes
  • Signals
  • Tools to Send Signals
  • nohup and disown
  • Managing Processes
  • Tuning Process Scheduling
  • Job Control Overview
  • Job Control Commands
  • Persistent Shell Sessions with Screen
  • Using screen
  • Advanced Screen
  • Lab Tasks
  • Job Control Basics
  • Process Management Basics
  • Screen Basics
  • Using Screen Regions

14. At and Cron
  • Automating Tasks
  • at/batch
  • cron
  • The crontab Command
  • crontab Format
  • /etc/cron.*/ Directories
  • Anacron

Lab Tasks
  • Creating and Managing User Cron Jobs
  • Adding System cron Jobs

15. Managing Software
  • Downloading with FTP
  • FTP
  • lftp
  • Command Line Internet – Non-interactive
  • Command Line Internet – Interactive
  • Managing Software Dependencies
  • Using the Yum command
  • YUM package groups
  • Configuring Yum
  • yumdownloader
  • Popular Yum Repositories
  • Using the Zypper command
  • Zypper Services and Catalogs
  • The dselect & APT Frontends to dpkg
  • Aptitude
  • Configuring APT

Lab Tasks
  • Command Line File Transfers
  • Using Yum
  • Using Zypper
  • Managing Yum Repositories
  • Managing Zypper Repositories
  • Using APT
  • Adding an APT repository

16. The Secure Shell (SSH)
  • Secure Shell
  • ssh and sshd Configuration
  • Accessing Remote Shells
  • Transferring Files
  • Alternative sftp Clients
  • SSH Key Management
  • ssh-agent

Lab Tasks
  • Introduction to ssh and scp
  • SSH Key-based User Authentication
  • Using ssh-agent

17. Mounting Filesystems & Managing Removable Media
  • Filesystems Concept Review
  • Mounting Filesystems
  • NFS
  • SMB
  • Filesystem Table (/etc/fstab)
  • AutoFS
  • Removable Media

Lab Tasks
  • Accessing NFS Shares
  • On-demand filesystem mounting with AutoFS

18.Printing
  • Legacy Print Systems
  • Common UNIX Printing System
  • Defining a Printer
  • Standard Print Commands
  • Format Conversion Utilities
  • enscript and mpage

Lab Tasks
  • Printing
  • Configuring Print Queues

19. The X Window System
  • X Modularity
  • X.Org Drivers
  • Configuring X Manually
  • Automatic X Configuration
  • Xorg and Fonts
  • Installing Fonts for Modern Applications
  • Installing Fonts for Legacy Applications
  • The X11 Protocol and Display Names
  • Display Managers and Graphical Login
  • Starting X Apps Automatically
  • X Access Control
  • Remote X Access (historical/insecure)
  • Remote X Access (modern/secure)
  • XDMCP
  • Remote Graphical Access With VNC and RDP
  • Specialized X Servers

Lab Tasks
  • Remote X with XDMCP
  • Configure X Security
  • Configure a VNC Server
  • Configure a VNC Server
  • Configure a VNC Server
  • Launching X Apps Automatically
  • Secure X

20. Emacs
  • Emacs
  • The Emacs Interface
  • Basic Emacs
  • More Emacs Commands

Lab Tasks
  • Text Editing with Emacs
 

Prerequisites

Before attending this course, students should be comfortable with computers. No familiarity with Linux or other UNIX operating systems is required.

 

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