batch file <operating system> (Or script) A text file containing {operating system} commands which are executed automatically by the {command-line interpreter}. In {Unix}, this is called a "{shell script}" since it is the Unix {shell} which includes the {command-line interpreter}. Batch files can be used as a simple way to combine existing commands into new commands. {autoexec.bat} is the best known example of an {MS-DOS} batch file. (1996-01-07)