如何在Windows中使用shell脚本永久设置环境变量

Question

我有一个.bat，我用它在运行几个程序之前设置一些环境变量。

我想永久设置这些环境变量，但如果可能的话，我不想手动设置。这里有捷径吗？是否有可以设置为永久添加到PATH的标志？

代码来自OpenVino提供的setupvars.bat：

set ROOT=%~dp0
call :GetFullPath "%ROOT%\.." ROOT
set SCRIPT_NAME=%~nx0

set "INTEL_OPENVINO_DIR=%ROOT%"
set "INTEL_CVSDK_DIR=%INTEL_OPENVINO_DIR%"

where /q libmmd.dll || echo Warning: libmmd.dll couldn't be found in %%PATH%%. Please check if the redistributable package for Intel(R) C++ Compiler is installed and the library path is added to the PATH environment variable. System reboot can be required to update the system environment.

:: OpenCV
if exist "%INTEL_OPENVINO_DIR%\opencv\setupvars.bat" (
call "%INTEL_OPENVINO_DIR%\opencv\setupvars.bat"
) else (
set "OpenCV_DIR=%INTEL_OPENVINO_DIR%\opencv\x64\vc14\lib"
set "PATH=%INTEL_OPENVINO_DIR%\opencv\x64\vc14\bin;%PATH%"
)

:: OpenVX
set "OPENVX_FOLDER=%INTEL_OPENVINO_DIR%\openvx"
set "PATH=%INTEL_OPENVINO_DIR%\openvx\bin;%PATH%"

:: Inference Engine
set "InferenceEngine_DIR=%INTEL_OPENVINO_DIR%\deployment_tools\inference_engine\share"
set "HDDL_INSTALL_DIR=%INTEL_OPENVINO_DIR%\deployment_tools\inference_engine\external\hddl"
set "PATH=%INTEL_OPENVINO_DIR%\deployment_tools\inference_engine\bin\intel64\Release;%INTEL_OPENVINO_DIR%\deployment_tools\inference_engine\bin\intel64\Debug;%HDDL_INSTALL_DIR%\bin;%PATH%"
if exist "%INTEL_OPENVINO_DIR%\deployment_tools\inference_engine\bin\intel64\arch_descriptions" (
set "ARCH_ROOT_DIR=%INTEL_OPENVINO_DIR%\deployment_tools\inference_engine\bin\intel64\arch_descriptions"
)
:: Check if Python is installed
python --version 2>NUL
if errorlevel 1 (
   echo Error^: Python is not installed. Please install Python 3.5. or 3.6  ^(64-bit^) from https://www.python.org/downloads/
   exit /B 1
)

:: Check Python version
for /F "tokens=* USEBACKQ" %%F IN (`python --version 2^>^&1`) DO (
   set version=%%F
)
echo %var%

for /F "tokens=1,2,3 delims=. " %%a in ("%version%") do (
   set Major=%%b
   set Minor=%%c
)

if "%Major%" geq "3" (
   if "%Minor%" geq "5" (
      set python_ver=okay
   )
   if "%Minor%" geq "6" (
     set python_ver=okay
   )
)

if not "%python_ver%"=="okay" (
   echo Unsupported Python version. Please install Python 3.5 or 3.6  ^(64-bit^) from https://www.python.org/downloads/
   exit /B 1
)

:: Check Python bitness
python -c "import sys; print(64 if sys.maxsize > 2**32 else 32)" 2 > NUL
if errorlevel 1 (
   echo Error^: Error during installed Python bitness detection
   exit /B 1
)

for /F "tokens=* USEBACKQ" %%F IN (`python -c "import sys; print(64 if sys.maxsize > 2**32 else 32)" 2^>^&1`) DO (
   set bitness=%%F
)

if not "%bitness%"=="64" (
   echo Unsupported Python bitness. Please install Python 3.5 or 3.6  ^(64-bit^) from https://www.python.org/downloads/
   exit /B 1
)

set PYTHONPATH=%INTEL_OPENVINO_DIR%\python\python%Major%.%Minor%;%PYTHONPATH%

echo PYTHONPATH=%PYTHONPATH%

echo [setupvars.bat] OpenVINO environment initialized

exit /B 0

:GetFullPath
SET %2=%~f1

GOTO :EOF

Answer 1

对于OpenVINO，每次打开命令行时都需要运行setupvars.sh脚本。但是，您还可以将所需的所有变量添加到系统环境变量中。

在Windows®10系统上，转至控制面板>系统和安全>系统>高级系统设置>环境变量。

有关所需变量及其值的列表，请参见this document。