A script file is a text file that contains a series of commands or instructions written in a programming or scripting language. These files are used to automate tasks, run programs, or perform specific functions without manual intervention. Common scripting languages include Python, JavaScript, and Bash. When executed, a script file processes the commands sequentially, allowing users to streamline repetitive tasks or manage complex operations efficiently. Script files are widely used in software development, system administration, and web development, making them essential tools for programmers and IT professionals.