Unix Shell Scripting

Automate command-line tasks and manage system workflows with Unix/Linux shell scripting. This hands-on course takes you from navigating the file system and using essential commands through writing scripts with variables, loops, and conditional logic, so you can combine Unix tools and scripting techniques to solve real-world problems efficiently.

What You'll Learn

By the end of this course, you will be able to:

• Navigate the Unix/Linux file system and manage files, directories, and permissions
• Define and use shell variables, environment variables, and command substitution
• Write and execute shell scripts with proper structure, comments, and automation logic
• Implement control structures using conditional statements and looping constructs
• Edit files with vi and process text streams with sed, grep, and awk
• Combine commands with pipes and redirection to automate repetitive tasks
• Debug and test shell scripts using best practices for maintainability

Requirements

• Basic familiarity with computers and file systems
• No prior Unix/Linux experience required

Audience

• System Administrators
• DevOps Engineers
• Developers and Technical Analysts
• Anyone looking to automate tasks in a Unix/Linux environment

Topics

Unix/Linux Command-Line Fundamentals

• Navigating the File System
• Viewing and Managing Files and Directories
• Understanding Permissions and Ownership
• Using Standard Input, Output, and Pipes
• Redirection and Special Characters

Shell Variables and Environment

• Defining and Using Variables
• Environment and Shell Variables
• Command Substitution and Variable Expansion
• Quoting and Escaping Special Characters

Basic Shell Scripting

• Writing and Executing Shell Scripts
• Script Structure and Shebang (#!)
• Using Comments and Documentation in Scripts
• Combining Commands for Automation

Control Structures

• Conditional Statements (if, case)
• Looping Constructs (for, while, until)
• Using Logical and Comparison Operators
• Implementing Flow Control for Script Logic

File Editing and Text Processing

• Editing Files with vi
• Searching and Replacing Text
• Stream Editing with sed
• Using grep, awk, and Other Text Utilities

Practical Problem Solving with Unix Tools

• Combining Commands with Pipes and Redirection
• Automating Repetitive Tasks with Scripts
• Debugging and Testing Shell Scripts
• Applying Best Practices for Maintainable Scripts