56 lines
2.3 KiB
Markdown
56 lines
2.3 KiB
Markdown
# Environment Variables in Windows
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## How to use them in PowerShell
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Environment Varaibles can be used in [PowerShell](windows/powershell.md) with the prefix `$env:`.
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**Example***:
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*Variable:* `%APPDATA%`
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*In Powershell:* `$env:APPDATA`
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## List of environment variables
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Variable | Description
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`%ALLUSERSPROFILE%`|C:\ProgramData
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`%APPDATA%`|C:\Users\{username}\AppData\Roaming
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`%COMMONPROGRAMFILES%`|C:\Program Files\Common Files
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`%COMMONPROGRAMFILES(x86)%`|C:\Program Files (x86)\Common Files
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`%CommonProgramW6432%`|C:\Program Files\Common Files
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`%COMSPEC%`|C:\Windows\System32\cmd.exe
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`%HOMEDRIVE%`|C:\
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`%HOMEPATH%`|C:\Users\{username}
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`%LOCALAPPDATA%`|C:\Users\{username}\AppData\Local
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`%LOGONSERVER%`|\\{domain_logon_server}
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`%PATH%`|C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem
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`%PathExt%`|.com;.exe;.bat;.cmd;.vbs;.vbe;.js;.jse;.wsf;.wsh;.msc
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`%PROGRAMDATA%`|C:\ProgramData
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`%PROGRAMFILES%`|C:\Program Files
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`%ProgramW6432%`|C:\Program Files
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`%PROGRAMFILES(X86)%`|C:\Program Files (x86)
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`%PROMPT%`|$P$G
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`%SystemDrive%`|C:
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`%SystemRoot%`|C:\Windows
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`%TEMP%`|C:\Users\{username}\AppData\Local\Temp
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`%TMP%`|C:\Users\{username}\AppData\Local\Temp
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`%USERDOMAIN%`|Userdomain associated with current user.
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`%USERDOMAIN_ROAMINGPROFILE%`|Userdomain associated with roaming profile.
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`%USERNAME%`|{username}
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`%USERPROFILE%`|C:\Users\{username}
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`%WINDIR%`|C:\Windows
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`%PUBLIC%`|C:\Users\Public
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`%PSModulePath%`|%SystemRoot%\system32\WindowsPowerShell\v1.0\Modules\
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`%OneDrive%`|C:\Users\{username}\OneDrive
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`%DriverData%`|C:\Windows\System32\Drivers\DriverData
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`%CD%`|Outputs current directory path. (Command Prompt.)
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`%CMDCMDLINE%`|Outputs command line used to launch current Command Prompt session. (Command Prompt.)
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`%CMDEXTVERSION%`|Outputs the number of current command processor extensions. (Command Prompt.)
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`%COMPUTERNAME%`|Outputs the system name.
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`%DATE%`|Outputs current date. (Command Prompt.)
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`%TIME%`|Outputs time. (Command Prompt.)
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`%ERRORLEVEL%`|Outputs the number of defining exit status of previous command. (Command Prompt.)
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`%PROCESSOR_IDENTIFIER%`|Outputs processor identifier.
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`%PROCESSOR_LEVEL%`|Outputs processor level.
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`%PROCESSOR_REVISION%`|Outputs processor revision.
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`%NUMBER_OF_PROCESSORS%`|Outputs the number of physical and virtual cores.
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`%RANDOM%`|Outputs random number from 0 through 32767.
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`%OS%`|Windows_NT
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