Explain the purpose and parameters of the ECHO command in a batch file. ECHO controls the displaying of commands on the screen during batch processing. ECHO ON echoes all commands in the file as well as any output from the commands. This is the default mode. ECHO OFF turns off the display of all commands to the screen but displays the command output.
Batch files allow the user to execute many commands by just entering one command.
If these commands take a significant amount of time to run, the user can leave the computer and do other things. The batch file will execute the commands until the batch file has completed executing. Batch files can save users many keystrokes by placing long commands into easily remembered batch files. If the user has a complicated set of procedures or commands, once the user has run it successfully, he can place the commands in a batch file with an easily remembered name.