This course runs for a duration of 5 Days.
The class will run daily from 9 AM MT to 5 PM MT.
Class Location: Virtual LIVE Instructor Led - Virtual Live Classroom.
The "GL120 Linux Fundamentals" course is tailored for IT professionals aiming to enhance their Linux skills, focusing on essential system administration tasks and the automation of routine operations. This detailed program covers a broad spectrum of Linux functionalities, from basic command line operations and filesystem management to setting up and maintaining secure environments. It provides a deep dive into the Linux ecosystem, equipping IT personnel with the necessary tools to manage and optimize Linux-based systems.
In the more advanced sections, the course delves into shell scripting and process management, critical for scripting automated tasks, managing software processes, and scheduling tasks with cron. Participants will gain hands-on experience in writing effective scripts for a variety of administrative tasks, including system monitoring and batch processing. The training also covers process management in depth, including job scheduling, process prioritization, and handling, essential for ensuring optimal performance and stability of Linux systems.
Additionally, the course introduces participants to advanced text manipulation techniques and tools such as sed, awk, and Vim. These tools are fundamental in efficiently handling log files, configuring system settings programmatically, and performing data analysis tasks. By the end of the course, IT professionals will have a solid foundation in managing Linux environments, with practical skills in leveraging Linux for system administration, automation, and technical problem-solving in professional IT settings.
Audience:
Benefits:
Supported Distributions:
Red Hat Enterprise Linux 9
SUSE Linux Enterprise 15
Ubuntu 18.04 LTS
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
Login and Exploration
Logging In
Running Programs
Interacting with Command Line
Desktop Environments
GNOME
Starting X
Gathering Login Session Info
Gathering System Info
uptime & w
got root?
Switching User Contexts
sudo
Help from Commands and Documentation
whereis
Getting Help Within the Graphical Desktop
Getting Help with man & info
$MANPATH, whatis and apropos
Lab Tasks
Login and Discovery
Help with Commands
Switching Users With su
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
Introduction to Troubleshooting Labs
Troubleshooting Practice: Filesystem
Manipulating Files
Directory Manipulation
File Manipulation
Deleting and Creating Files
Managing Files Graphically
Drag and drop with Nautilus
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
Shell Basics
Role of Command Shell
Communication Channels
File Redirection
Piping Commands Together
Filename Matching
File Globbing and Wildcard Patterns
Brace Expansion
Shell and Environment Variables
Key Environment Variables
Which and Type
General Quoting Rules
Nesting Commands
Lab Tasks
Redirection and Pipes
Wildcard File Matching
Shell Variables
Shell Meta-Characters
Command Substitution
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
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
Regular Expressions
Regular Expression Overview
Regular Expression Implementations
Regular Expressions
RE Character Classes
Regex Quantifiers
RE Parenthesis
Lab Tasks
Pattern Matching with Regular Expressions
Extended Regular Expressions
Using Regular Expressions With sed
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
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
Command Line Email
Alpine
Command Shells
Shells
Identifying the Shell
Changing the Shell
Shell Configuration Files
Script Execution
Bourne Shell: Shell Prompts
Bash: Bourne-Again Shell
Bash: Configuration Files
Bash: Command Line History
Bash: Command Editing
Bash: Command Completion
Bash: "shortcuts"
Bash: prompt
Setting Resource Limits via ulimit
Lab Tasks
Linux Shells
Bash History
Aliases
Bash Login Scripts
The Z Shell
Introduction to Shell Scripting
Shell Script Strengths and Weaknesses
Example Shell Script
Positional Parameters
Input & Output
Doing Math
Exit Status
Comparisons with test
Conditional Statements
Flow Control: case
The borne for-Loop
The while and until Loops
Lab Tasks
Writing a Shell Script
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 tmux
Persistent Shell Sessions with Screen
Using screen
Advanced Screen
Lab Tasks
Job Control Basics
Process Management Basics
Screen Basics
Using Screen Regions
Troubleshooting Practice: Process Management
At and Cron
Automating Tasks
at/batch
cron
The crontab Command
crontab Format
/etc/cron.*/ Directories
Anacron
Systemd Timers
Lab Tasks
Creating and Managing User Cron Jobs
Adding System cron Jobs
Troubleshooting Practice: Automating Tasks
Managing Software
Downloading with FTP
FTP
lftp
Command Line Internet – Non-interactive
Command Line Internet – Interactive
Managing Software Dependencies
Using the Yum & DNF commands
Using Yum history
Yum package groups
Configuring Yum
dnf download & yumdownloader (deprecated)
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 DNF
Using Zypper
Managing Yum Repositories
Managing Zypper Repositories
Using APT
Adding an APT repository
The Secure Shell (SSH)
Secure Shell
OpenSSH Client & Server Configuration
Accessing Remote Shells
Transferring Files
Alternative sftp Clients
SSH Key Management
ssh-agent
Lab Tasks
Introduction to ssh and secure file transfer
SSH Key-based User Authentication
Using ssh-agent
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
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
The X Window System
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
Secure X
Emacs
Emacs
The Emacs Interface
Basic Emacs
More Emacs Commands
Lab Tasks
Text Editing with Emacs
Students should be comfortable with computers. No familiarity with Linux or other Unix operating systems is required.
