如果您希望永久删除环境变量,您需要在系统环境变量中进行更改。为此,您需要以管理员身份运行 PowerShell,并使用Remove-Item命令删除HKLM:\System\CurrentControlSet\Control\Session Manager\Environment注册表键中的相应值。但是,请谨慎操作注册表,并确保备份关键数据以防止意外删除或更改。
# 设置 Scope 级别的 Path 环境$env_var变量为空,从而清除该环境变量(.Net检测到空字符串就移除掉该变量,而不仅仅设置为空字符串) [Environment]::SetEnvironmentVariable($env_var, '', $Scope) Remove-Item env:$env_var } else { Write-Host "No [$env_var] was found! Nothing to Remove." } }...
可以通过为变量的值指定空字符串,使用SetEnvironmentVariable()方法删除环境变量。 例如,若要删除环境变量,请执行以下操作Foo: PowerShell复制 [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。 ...
Remove-Variable[-Name] <String[]> [-Include <String[]>] [-Exclude <String[]>] [-Force] [-Scope <String>] [-WhatIf] [-Confirm] [<CommonParameters>] 说明 Remove-Variablecmdlet 从定义变量的范围中删除变量及其值,例如当前会话。 不能使用此 cmdlet 删除设置为常量或系统拥有的变量。
We've learned we can create system variables on a remote machine with the setx.exe command:PSH> setx -m remote.machine My_System_Variable VariableDataHowever, setx doesn't give us a way to remove the variable.PSH> (new-object -com wscript.shell).environment("system").remove("My_System_...
PowerShell $Cred=Get-CredentialInvoke-Command$s{Remove-Item.\Test*.ps1-Credential$using:Cred} 範圍using修飾詞是在 PowerShell 3.0 中引進的。 另請參閱 about_Variables about_Environment_Variables about_Functions about_Script_Blocks Start-ThreadJob...
if(ShouldProcess("Remove Isolated Storage")) { WriteVerbose("Deleting Isolated Storage: " + Name); isoStore = this.GetMyStore(); isoStore.DeleteFile(Name); } Notice that I'm using ShouldProcess again. Since I'm making a change to the system, I need to notify the user of what I'm...
if(ShouldProcess("Remove Isolated Storage")) { WriteVerbose("Deleting Isolated Storage: " + Name); isoStore = this.GetMyStore(); isoStore.DeleteFile(Name); } Notice that I'm using ShouldProcess again. Since I'm making a change to the system, I need to notify the user of what I'm...
Remove-Item Env:\TestVariable Alternatively you can use the SetEnvironmentVariable method, assigning the environment variable a null value: [Environment]::SetEnvironmentVariable("TestVariable",$null,"User") Again, if you use SetEnvironmentVariable the deleted variable might still show up when you ca...
同样的为了实现PowerShell脚本的保存、方面在别的服务器迁移，一般都是先编写脚本，然后通过脚本文件执行...