Introduction to Linux Shell Scripting

Learn to write and run your first Linux shell script: a plain text file of commands, stored for reuse, made executable with chmod, and executed in the terminal.

Learn how Linux file permissions govern read, write, and execute access for owner, group, and others, and practice using chmod to set numeric permissions such as 771 or 777.

Explore shell builtin commands, manage file permissions and executable bits, and use echo to print script content while learning to run and edit shell scripts.

Learn how to declare and use variables in shell scripts, including valid naming rules, assignment and value updates, and echoing outputs, with emphasis on comments for clear documentation.

Create a linux shell script that gathers system information such as hostname, date, kernel info, memory and disk utilization, using comments and echo to display results.

Explore condition handling in shell scripting by using if statements and integer comparisons (equal, not equal, greater than, less than) inside loops, including username checks for login verification.

Learn how to use the for loop in Linux shell scripting to iterate over values, print results, and manage variables with practical script examples.

Recaps how to define and use shell variables, access them with the dollar sign, and write comments; it also explains file permissions with octal values like 7 0 0 7.