PowerShell获取系统环境变量

通过Get-ChildItem列出所有的环境变量

Get-ChildItem env:

Name                           Value
----                           -----
ALLUSERSPROFILE                C:ProgramData
ANDROID_HOME                   C:UserslinxmouseAppDataLocalAndroidSdk
APPDATA                        C:UserslinxmouseAppDataRoaming
ChocolateyInstall              C:ProgramDatachocolatey
ChocolateyLastPathUpdate       132333362211161774
CommonProgramFiles             C:Program FilesCommon Files
CommonProgramFiles(x86)        C:Program Files (x86)Common Files
CommonProgramW6432             C:Program FilesCommon Files
COMPUTERNAME                   DESKTOP-1FO62S5
ComSpec                        C:WINDOWSsystem32cmd.exe
DriverData                     C:WindowsSystem32DriversDriverData
FLUTTER_STORAGE_BASE_URL       https://storage.flutter-io.cn
HALCONARCH                     x64-win64
HALCONEXAMPLES                 C:UsersPublicDocumentsMVTecHALCON-17.12-Progressexamples
HALCONIMAGES                   C:UsersPublicDocumentsMVTecHALCON-17.12-Progressexamplesimages
HALCONROOT                     d:Program FilesMVTecHALCON-17.12-Progress
HOME                           C:Userslinxmouse
HOMEDRIVE                      C:
HOMEPATH                       Userslinxmouse
JAVA_HOME                      D:Program FilesJavajre1.8.0_251
LESSCHARSET                    utf-8
LOCALAPPDATA                   C:UserslinxmouseAppDataLocal
LOGONSERVER                    \DESKTOP-1FO62S5
NUMBER_OF_PROCESSORS           12
OneDrive                       C:UserslinxmouseOneDrive
OS                             Windows_NT
Path                           C:WINDOWSsystem32;C:WINDOWS;C:WINDOWSSystem32Wbem;C:WINDOWSSystem32WindowsPo...
PATHEXT                        .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.CPL
PROCESSOR_ARCHITECTURE         AMD64
PROCESSOR_IDENTIFIER           Intel64 Family 6 Model 158 Stepping 10, GenuineIntel
PROCESSOR_LEVEL                6
PROCESSOR_REVISION             9e0a
ProgramData                    C:ProgramData
ProgramFiles                   C:Program Files
ProgramFiles(x86)              C:Program Files (x86)
ProgramW6432                   C:Program Files
PSModulePath                   C:UserslinxmouseDocumentsWindowsPowerShellModules;C:Program FilesWindowsPowerS...
PUB_HOSTED_URL                 https://pub.flutter-io.cn
PUBLIC                         C:UsersPublic
SystemDrive                    C:
SystemRoot                     C:WINDOWS
TEMP                           C:UsersLINXMO~1AppDataLocalTemp
TMP                            C:UsersLINXMO~1AppDataLocalTemp
USERDOMAIN                     DESKTOP-1FO62S5
USERDOMAIN_ROAMINGPROFILE      DESKTOP-1FO62S5
USERNAME                       linxmouse
USERPROFILE                    C:Userslinxmouse
VBOX_MSI_INSTALL_PATH          D:Program FilesOracleVirtualBox
windir                         C:WINDOWS
WSLENV                         WT_SESSION::WT_PROFILE_ID
WT_PROFILE_ID                  {61c54bbd-c2c6-5271-96e7-009a87ff44bf}
WT_SESSION                     4dc413e1-5ed9-46d4-b4f0-5a2fec7aeb44
WXDRIVE_START_ARGS             --wxdrive-setting=0 --disable-gpu --disable-software-rasterizer --enable-features=Net...

通过ls列出所有的环境变量

ls env:

Name                           Value
----                           -----
ALLUSERSPROFILE                C:ProgramData
ANDROID_HOME                   C:UserslinxmouseAppDataLocalAndroidSdk
APPDATA                        C:UserslinxmouseAppDataRoaming
ChocolateyInstall              C:ProgramDatachocolatey
ChocolateyLastPathUpdate       132333362211161774
CommonProgramFiles             C:Program FilesCommon Files
CommonProgramFiles(x86)        C:Program Files (x86)Common Files
CommonProgramW6432             C:Program FilesCommon Files
COMPUTERNAME                   DESKTOP-1FO62S5
ComSpec                        C:WINDOWSsystem32cmd.exe
DriverData                     C:WindowsSystem32DriversDriverData
FLUTTER_STORAGE_BASE_URL       https://storage.flutter-io.cn
HALCONARCH                     x64-win64
HALCONEXAMPLES                 C:UsersPublicDocumentsMVTecHALCON-17.12-Progressexamples
HALCONIMAGES                   C:UsersPublicDocumentsMVTecHALCON-17.12-Progressexamplesimages
HALCONROOT                     d:Program FilesMVTecHALCON-17.12-Progress
HOME                           C:Userslinxmouse
HOMEDRIVE                      C:
HOMEPATH                       Userslinxmouse
JAVA_HOME                      D:Program FilesJavajre1.8.0_251
LESSCHARSET                    utf-8
LOCALAPPDATA                   C:UserslinxmouseAppDataLocal
LOGONSERVER                    \DESKTOP-1FO62S5
NUMBER_OF_PROCESSORS           12
OneDrive                       C:UserslinxmouseOneDrive
OS                             Windows_NT
Path                           C:WINDOWSsystem32;C:WINDOWS;C:WINDOWSSystem32Wbem;C:WINDOWSSystem32WindowsPo...
PATHEXT                        .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.CPL
PROCESSOR_ARCHITECTURE         AMD64
PROCESSOR_IDENTIFIER           Intel64 Family 6 Model 158 Stepping 10, GenuineIntel
PROCESSOR_LEVEL                6
PROCESSOR_REVISION             9e0a
ProgramData                    C:ProgramData
ProgramFiles                   C:Program Files
ProgramFiles(x86)              C:Program Files (x86)
ProgramW6432                   C:Program Files
PSModulePath                   C:UserslinxmouseDocumentsWindowsPowerShellModules;C:Program FilesWindowsPowerS...
PUB_HOSTED_URL                 https://pub.flutter-io.cn
PUBLIC                         C:UsersPublic
SystemDrive                    C:
SystemRoot                     C:WINDOWS
TEMP                           C:UsersLINXMO~1AppDataLocalTemp
TMP                            C:UsersLINXMO~1AppDataLocalTemp
USERDOMAIN                     DESKTOP-1FO62S5
USERDOMAIN_ROAMINGPROFILE      DESKTOP-1FO62S5
USERNAME                       linxmouse
USERPROFILE                    C:Userslinxmouse
VBOX_MSI_INSTALL_PATH          D:Program FilesOracleVirtualBox
windir                         C:WINDOWS
WSLENV                         WT_SESSION::WT_PROFILE_ID
WT_PROFILE_ID                  {61c54bbd-c2c6-5271-96e7-009a87ff44bf}
WT_SESSION                     4dc413e1-5ed9-46d4-b4f0-5a2fec7aeb44
WXDRIVE_START_ARGS             --wxdrive-setting=0 --disable-gpu --disable-software-rasterizer --enable-features=Net...

获取环境变量的值

$env:path
C:WINDOWSsystem32;C:WINDOWS;C:WINDOWSSystem32Wbem;C:WINDOWSSystem32WindowsPowerShellv1.0;C:WINDOWSSystem32OpenSSH;C:Program FilesMicrosoft SQL Server130ToolsBinn;C:Program FilesMicrosoft SQL ServerClient SDKODBC170ToolsBinn;d:Program FilesMVTecHALCON-17.12-Progressinx64-win64;d:Program FilesGitcmd;C:Program Filesdotnet;C:Program Files (x86)NVIDIA CorporationPhysXCommon;C:UserslinxmouseAppDataLocalProgramsPythonPython37Scripts;C:UserslinxmouseAppDataLocalProgramsPythonPython37;C:UserslinxmouseAppDataLocalMicrosoftWindowsApps;D:Program FilesJavajre1.8.0_251in;d:Program FilesLLVMin;d:ProgramsMicrosoft VS Codein;D:flutterin;D:flutter.pub-cachein;D:flutterincachedart-sdkin;C:UserslinxmouseAppDataLocalAndroidSdk	ools;C:UserslinxmouseAppDataLocalAndroidSdkplatform-tools;D:Program Filesprotoc-3.11.4-win64in;C:Userslinxmouse.dotnet	ools;C:UserslinxmouseAppDataLocalMicrosoftWindowsApps;C:Userslinxmouse.dotnet	ools