Environment Variable Description

The following environment variables are used during program installation or running. Ensure that they are valid.

Table 1 Environment variables

Environment Variable

Description

PATH

Path of the executable program.

LD_LIBRARY_PATH

Path of the dynamic link library.

PYTHONPATH

Default search path of the Python module file.

HOME

Home directory of the current user.

PWD

Current system path.

TMPDIR

Temporary file path.

GST_PLUGIN_PATH

Path for GStreamer to search for plugin library files.

MX_SDK_HOME

Vision SDK installation directory. Ensure that the path is valid.

ASCEND_HOME_PATH

Path of CANN-related resources. Ensure that the path is valid.

ASCEND_HOME

CANN installation directory. Ensure that the path is valid.

ASCEND_VERSION

CANN version number. Do not change it unless necessary.

ASCEND_CUSTOM_OPP_PATH

Deployment path of Ascend C operators. Do not change the path unless necessary.

GIO_MODULE_DIR

Path of the folder where libgiognutls.so is located, which is used when the stream pulling plugin enables the encrypted transmission function.

GST_PLUGIN_SCANNER

Path of the GStreamer plugin scanner (gst-plugin-scanner).