Input Output, Expression Handling, and System Management

This course is designed to provide learners with a practical and conceptual foundation in Unix-based input/output handling, file management, and system administration. Through two in-depth modules, learners will progress from understanding essential I/O mechanisms to executing advanced administrative tasks using Unix commands and structures. In Module 1, learners will define, demonstrate, and apply principles of input/output processing, file streams, standard redirection, and text substitution using tools like sed and regular expressions. The lessons in this module emphasize file-based operations and the abstraction of system components in Unix. Module 2 shifts focus to navigation, disk management, and user-level control. Learners will describe the Unix directory hierarchy, execute device mounting operations, and manage user accounts and permissions—developing the skills needed for real-world system maintenance and security enforcement. With a blend of theoretical concepts, command-line practice, graded assessments, and real-use scenarios, this course equips learners to not only operate confidently in Unix environments but also to analyze system behaviors and evaluate administrative strategies effectively.