Runs a specified command for each file in a set of files. FOR %variable IN (set) DO command [command-parameters] %variable Specifies a replaceable parameter. (set) Specifies a set of one or more files. Wildcards may be used. command Specifies the command to carry out for each file. command-parameters Specifies parameters or switches for the specified command. To use the FOR command in a batch program, specify %%variable instead of %variable.