A batch file is a script file in DOS, OS/2, and Windows. It consists of a series of commands to be executed by the command-line interpreter, stored in a plain text file. Batch files are used to automate repetitive tasks, run sequences of programs, and perform system administration tasks. They are interpreted line by line, and each line typically contains a command that the operating system can execute. Batch files are a simple way to create scripts for automating tasks, especially in environments where more complex scripting languages are not available or necessary. They are often used for tasks such as installing software, backing up files, or performing system maintenance. While powerful, batch files have limitations compared to more advanced scripting languages like Python or PowerShell, particularly in terms of error handling and complex logic.