[Environment]::SetEnvironmentVariable('Foo','') [Environment]::GetEnvironmentVariable('Foo') Output复制 有关System.Environment类的方法的详细信息,请参阅环境方法。 在Windows 中Create永久性环境变量 在Windows 上,有三种方法可用于对环境变量进行持久更改: 在配置文件中设置它们 SetEnvironmentVariable()使用 ...
此代码片段演示如何使用资源块定义,ConfigurationEnvironment以确保TestEnvironmentVariable在进程和计算机目标中设置包含TestValue。 PowerShell Configuration CreatePathVariable {Import-DscResource-ModuleName'PSDscResources'Node localhost { Environment ExampleEnvironment { Name ='TestPathEnvironmentVariable'Value ='TestValu...
One thing to watch out for: when we used SetEnvironmentVariable to create a new user- or machine-level environment variable that variable didn’t always show up when we ran this command in Windows PowerShell: Get-ChildItem Env: Or at least it didn’t show up until we restarted PowerShell...
add a value to a specified environment variable often, the most useful variable is `Path`; and the most often operation is add value to the Path ; if the target value is no exist yet, then the function will try to create the corresponding variable for you! 本函数既可以为已有的环境变量...
您應該建立變數名稱來描述儲存在其中的資料。 例如,儲存使用者帳戶的變數可以是 $user,而儲存記錄檔名稱的變數可以是 $logFileName。 在大部分情況下,您將發現變數會與貨幣符號 ($) 搭配使用。 符號 $ 不是變數名稱的一部分,但可區分變數與 Windows PowerShell 的其他語法元素。 例如, $user 指定名...
add a value to a specified environment variable often, the most useful variable is `Path`; and the most often operation is add value to the Path ; if the target value is no exist yet, then the function will try to create the corresponding variable for you!
cmd.exe /c"set cmd=Write-Host ENV -Fore Green&&powershell IEX ([Environment]::GetEnvironmentVariable('cmd', 'Process')) cmd.exe/c"set cmd=Write-Host ENV -Fore Green&&powershell IEX ((Get-ChildItem/ChildItem/GCI/DIR/LS env:cmd).Value) ...
Suppose we take our previous command and, rather than directly outputting the information to the screen, store that data in a variable named $a: Copy $a = (Get-ChildItem C:\Test | Select-Object Name, @{Name="UCaseName"; Expression={$_.Name.ToUpper()}}) Now let’s set up a ...
As a security feature, PowerShell doesn't run executable commands, including PowerShell scripts and native commands, unless the command is located in a path listed in the $env:Path environment variable. To run an executable file that's in the current directory, specify the full path or use ...
Specify the name of the environment variable. Type: System.String Optional properties Ensure Specify whether the environment variable should exist. Specify this property asAbsentto remove the environment variable if it exists. Specify this property asPresentto create the environment variable if it doesn...