What are the functions of @echo off in bat batch processing?

In BAT batch processing, the purpose of @echo off is as follows:

1. Turn off the display of output in the command prompt window: When using @echo off, the command prompt window will no longer show the commands and output results in the batch file.
2. Hiding the execution process of batch files: By turning off output display with @echo off, batch files can be executed without showing the specific execution process, preventing users from seeing sensitive information or complex execution steps.
3. Improve execution efficiency: Disabling output display can reduce the time for command line window drawing and output, thus enhancing the efficiency of batch file execution, especially when dealing with a large number of commands or loop operations.
4. Avoid interference with user operations: Closing the output display when batch files need to be executed in the user interface can prevent the interference of command line windows, allowing users to focus more on the interface operation.
5. Streamlining batch file writing: By turning off output display, unnecessary @echo on and @echo off statements can be omitted when writing batch files, making it easier to write and maintain them.

Overall, using “@echo off” can improve the efficiency of batch processing files, conceal the execution process, prevent interference with user operations, and simplify the writing of batch processing files.