Linux Fundamentals & Shell Scripting

Learning Objective: In this module, you will be introduced to various features of Linux. You will learn history, open source licences, various Linux distributions and Linux installation.

• Need for Linux OS
• What is Linux
• History of Linux
• Relationship Between Unix And Linux
• Features of Linux
• False myths around Linux
• Where Linux is used?
• Components of a Linux OS
• The architecture of Linux OS
• Types of Kernel
• Shell
• Programming in Linux
• Linux Distribution
• Miscellaneous Linux Concepts
• Software Licencing
• Installation and initialisation of Linux
• Shell Scripting
• Practical Uses of Shell Scripting

Learning Objective: In this module, you will understand the user interface, commands and tools, and file operations in Linux

• Understand User Interface in Linux
• Implement basic Linux Commands and Tools
• vim Editor
• Advanced Linux Commands
• File System
• File System Comparisons
• File Attributes
• File Operations
• File System Characteristics
• File Access Methods
• Formatting and Partitioning
• Multiboot System
• Learn Packaging Management in Linux
• Hands On/Demo:
• Linux Commands
• Vim Editor
• Creating partitions

Learning Objective: In this module, you will learn about managing Users and perform Authentication Configuration

• Users in Linux
• User Configuration
• Adding/Deleting/Modifying Users
• Group Administration
• Password Aging Policies
• Switching Accounts
• Sudo
• Network Users
• Authentication Configuration
• SUID and SGID Executable
• SGID Directories
• The Sticky Bit
• Default File Permissions
• Access Control Lists (ACLs)
• Hidden Files
• Hands On/Demo:
• Demo – sudo, chown and chmod
• Adding a user
• Delete user
• Modify user
• Hidden Files

Learning Objective: In this module, you will learn about the boot management system and configuring services to run at boot. You will understand package management, which includes installing and removing software and updating a Kernel RPM.

• Kernel Configuration
• Boot Management
• Grub Bootloader Configurations
• Red Hat Package Manager
• YUM
• DPKG
• APT
• Build from the source code
• Libraries
• Hands On/Demo:
• Sysctl
• Bootloader Configurations
• Red Hat Package Manager
• YUM
• DPKG
• APT

Learning Objective: In this module, you will learn about OSI layers and various protocols of networking in Linux

• OSI layers and Protocols: IPv4, IPv6, TCP, UDP, FTP, TFTP, Telnet, SSH, HTTP, DNS, DHCP, ARP,
• ICMP etc.
• Packet capturing tools
• Linux commands/tools to troubleshoot networking: netstat, tcpdump, ip, etc.
• Linux utilities: e.g. dnsmasqd, samba server ftpd, webserver, netcat, scp etc.
• Linux Firewall: command, utility and usage.
• Security: SSH, SCP. Certificates, authentication, encryption etc.
• Remote log in: SSH, screen, VNC, etc.
• Hands On/Demo:
• IP addresses
• DNS
• ICMP
• dnsmasq.conf
• IP tables

Learning Objective: In this module, you will learn process management, system calls and bash operations.

• Process Management
• Process Commands
• System Calls
• Output Redirection
• Special Variables in Bash
• Expect Script
• Python Scripting
• Dictionaries
• Hands On/Demo:
• Ps command
• Top command
• Kill command
• Expect

Learning Objective: In this module, you will learn about programming languages, libraries and profiling tools.

• Programming languages overview
• Static and Shared libraries
• Compilers, debugger, IDE, ctags, make utility etc.
• Editors in Linux: vi, emacs,
• Troubleshooting and optimization using profiling tools
• Diff, patch and Configuration management system
• Test automation and CI/CD pipeline
• Hands On/Demo:
• Libraries
• Makefile

Learning Objective: In this module, we will learn about Linux security administration and Virtualization.

• Security in IT Industry
• SELinux
• Information gathering tools
• Grub security
• TCP Wrappers
• Securing Shell
• ClamAV
• Virtualization