问题
I want to capture the errors from a script into a file instead of to the screen.
In *nix, this is done with stderr redirection, usually
echo "Error" 2> errorfile.log
How do I do it in a CMD script under Windows?
回答1:
For example:
PSKILL NOTEPAD >output.txt 2>&1
This will direct stdout and stderr to a file name output.txt.
See Underused features of Windows batch files for more details.
回答2:
That should work in Win32, too.
If you have already redirected stdout, and want stderr redirected to the same file, you must use the 2>& special form, rather than just specifying the same file twice. Otherwise you'll get a "file busy" error.
来源：https://stackoverflow.com/questions/482678/how-to-capture-stderr-on-windows-dos