Batch Files

A batch file is a file that contains a list of commands to execute. 
 CMD.EXE reads and interprets each line as if it had been typed at the 
keyboard.  Like aliases, batch files are handy for automating computing 
tasks.  Unlike aliases, batch files can be as long as you wish.  Batch 
files take up separate disk space for each file, and can't usually execute 
quite as quickly as aliases, since they must be read from the disk. 

The topics included in this section are: 

            .BAT, .CMD, and .BTM Files 
            Echoing in Batch Files 
            Batch File Parameters 
            Using Environment Variables 
            Batch File Commands 
            Interrupting a Batch File 
            Automatic Batch Files (4START & 4EXIT) 
            Detecting CMD.EXE 
            Using Aliases in Batch Files 
            Debugging Batch Files 
            Batch File String Processing 
            Batch File Line Continuation 
            Batch File Compression 
            Special Character Compatibility 
            Command Parsing 
            Argument Quoting 
            REXX Support 
            EXTPROC Support