QProcess not run "cmd.exe" command and "cmd.exe" not run .bat file.

[jiajintao]

Please help me.

p = QProcess()

def _read():
    print(p.readAllStandardOutput())
    print(p.readAllStandardError())

p.readyReadStandardOutput.connect(_read)

1. p.start( 'tasklist')  ### result is good
2. p.start('cmd', ['tasklist | findstr "adb"'])  ### reuslt is bad nothing, 
# reuslt:  b'Microsoft Windows [Version 10.0.22000.556]\r\n(c) Microsoft Corporation. All rights reserved.\r\n\r\nC:\\Users\\User\\project\\autotest_tools\\external_tool\\win_shells>'

3. p.start('tasklist', ['|', 'findstr', 'adb'])  ### result is bad, noting. not run _read()
4. p.start('cmd',  ['C:/Users/....../shells/test.bat'])  # result is bad, nothing ,  result is to "2"

------test.bat------
echo "name:jiajintao"

but, run test.bat on windows cmd.exe is good.

windows11, pyqt6
I don't know what to do
I'm not good at English please don't mind

[JonB]

@jiajintao
:)

I presume you have discovered that you need to run cmd /c ... for things which need to be run under cmd (your examples #2, 3 & 4).

[JonB]

@jiajintao

QProcess not run "cmd.exe"

Your code does not attempt to run cmd.exe

and "cmd.exe" not run .bat file

It does. You do not run cmd.exe, and there is no .bat file involved here anyway.

Try to write a proper question, which relates to whatever code you show.

[jiajintao]

@JonB The question was submitted by mistake and it has now been fixed

[JonB]

@jiajintao
:)

I presume you have discovered that you need to run cmd /c ... for things which need to be run under cmd (your examples #2, 3 & 4).

[jiajintao]

@JonB oh， so simple, thank you. thank you so much
It's such a simple question that I didn't find it
thank you so much