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Learn to build a practical bash script that validates input and compares numbers using if-elif-else statements. Master the -z operator for checking empty strings and command line arguments.
Master if-else statements in bash scripting. Learn file testing with -f, string testing with -z, and build intelligent scripts that make decisions based on conditions.
Master command line arguments in bash scripts. Learn to handle single and multiple parameters, validate input, and build professional command-line tools with proper error handling.
Learn how to make your bash scripts interactive by capturing user input with the read command. Build dynamic scripts that respond to user choices and data entry.
Learn how to declare, use, and manipulate variables in bash scripts. Master variable assignment, substitution, and best practices for dynamic shell scripting.
Learn how to create, make executable, and run your first bash script on Linux. Understand file permissions, shebangs, and common execution methods with practical examples.