如何不退出已调用的批处理文件

Question

I am writing a batch file which calls another batch file. The external batch is mine, the internal isn't.

The external batch is called from Java application:

Runtime.getRuntime().exec("cmd /c start " + batchFileName, null, new File(batchFileDir));

The internal batch is called from the external batch:

call C:\anotherBatch.bat <fileWithCommandsForBatch
pause

The problem is that the internal batch finishes when the external batch finishes. I want that the user will still be able to run commands of its own on the internal batch.

If I run the same commands of "fileWithCommandsForBatch" manually from cmd, the internal batch is still alive.

How can I keep the internal batch alive after the external batch finishes its job?

Answer 1

If you just want users to be able to append to the standard input from fileWithCommandsForBatch by manually typing within the command window, see "Prepend to stdin" . (Your Java program would not be involved.) In your external batch, you might get code like

(
type fileWithCommandsForBatch
more
) | call C:\anotherBatch.bat

I guess, it somewhat depends on the called anotherBatch.bat if redirection works as intended (specifically input is line-by-line not single keystrokes). Note that more expects users to type lines, so the pause of your original script is omitted. If not handled by called anotherBatch.bat , users can terminate input by sending an EOF (by typing F6 or Control-Z in command window).