windows 系统变量 环境变量

新装的系统（以下都是windows sandbox截图）

cmd中用set命令查看所有变量
powellshell中用Get-ChildItem Env:（可以输出到文件Get-ChildItem Env: | out-file env.txt），命令Get-Item可以使用ls替代

Name                           Value
----                           -----
ALLUSERSPROFILE                C:\ProgramData
APPDATA                        C:\Users\WDAGUtilityAccount\AppData\Roaming
CLIENTNAME                     583482e0-fafd-4
CommonProgramFiles             C:\Program Files\Common Files
CommonProgramFiles(x86)        C:\Program Files (x86)\Common Files
CommonProgramW6432             C:\Program Files\Common Files
COMPUTERNAME                   2A41C45E-C613-4
ComSpec                        C:\Windows\system32\cmd.exe
DriverData                     C:\Windows\System32\Drivers\DriverData
HOMEDRIVE                      C:
HOMEPATH                       \Users\WDAGUtilityAccount
LOCALAPPDATA                   C:\Users\WDAGUtilityAccount\AppData\Local
LOGONSERVER                    \\2A41C45E-C613-4
NUMBER_OF_PROCESSORS           8
OS                             Windows_NT
Path                           C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Users\WDAGUtilityAccount\AppData\Local\Microsoft\WindowsApps;
PATHEXT                        .COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.CPL
PROCESSOR_ARCHITECTURE         AMD64
PROCESSOR_IDENTIFIER           Intel64 Family 6 Model 158 Stepping 13, GenuineIntel
PROCESSOR_LEVEL                6
PROCESSOR_REVISION             9e0d
ProgramData                    C:\ProgramData
ProgramFiles                   C:\Program Files
ProgramFiles(x86)              C:\Program Files (x86)
ProgramW6432                   C:\Program Files
PSModulePath                   C:\Users\WDAGUtilityAccount\Documents\WindowsPowerShell\Modules;C:\Program Files\WindowsPowerShell\Modules;C:\Windows\system32\WindowsPowerShell\v1.0\Modules
PUBLIC                         C:\Users\Public
SESSIONNAME                    31C5CE94259D4006A9E4#0
SystemDrive                    C:
SystemRoot                     C:\Windows
TEMP                           C:\Users\WDAGUtilityAccount\AppData\Local\Temp
TMP                            C:\Users\WDAGUtilityAccount\AppData\Local\Temp
USERDOMAIN                     2A41C45E-C613-4
USERDOMAIN_ROAMINGPROFILE      2A41C45E-C613-4
USERNAME                       WDAGUtilityAccount
USERPROFILE                    C:\Users\WDAGUtilityAccount
windir                         C:\Windows