This chapter delves into the essential commands and operations that form the foundation of MATLAB programming and serves as a critical introduction to MATLAB's syntax, command structure, and data handling capabilities, providing civil engineers with the necessary tools for computational efficiency. Key topics include variable manipulation, matrix and vector operations, and control structures such as loops and conditionals. Special emphasis is placed on vectorization, a powerful feature of MATLAB that enhances performance by enabling operations on entire datasets without the need for explicit loops. The chapter also covers error handling and debugging techniques, ensuring the development of robust scripts and functions for solving engineering problems. By offering practical insights into MATLAB’s capabilities for matrix computations, data analysis, and algorithm development, this chapter establishes a strong groundwork for more advanced engineering applications, preparing the reader to address complex computational tasks with efficiency and precision. As the cornerstone of MATLAB programming, these operations empower civil engineers to engage deeply with simulation, optimization, and data visualization tasks, ultimately supporting innovation in civil engineering design and analysis.