Clear-Variable [-Name] <String[]> [-Include <String[]>] [-Exclude <String[]>] [-Force] [-PassThru] [-Scope <String>] [-WhatIf] [-Confirm] [<CommonParameters>]说明Clear-Variable cmdlet 删除存储在变量中的数据,但不会删除该变量。 因此,变量的值为 NULL(空)。 如果变量具有指...
1. 使用Remove-Variable命令: Remove-Variable -Name 变量名 该命令会删除指定变量的值和名称。 2. 使用Clear-Variable命令: Clear-Variable -Name 变量名 该命令会清除指定变量的值,但保留变量的名称。 3. 使用Set-Variable命令赋予变量一个空值: Set-Variable -Name 变量名 -Value $null 该命令将指定变量的值...
$MyVariable=1,2,3$MyVariable Output 1 2 3 PowerShell $MyVariable="The green cat."$MyVariable Output The green cat. 若要刪除變數的值,請使用Clear-VariableCmdlet 或將值變更為$null。 PowerShell Clear-Variable-NameMyVariable PowerShell
New-Variable Cmdlet Creates a new variable. Set-Variable Cmdlet Sets the value of a variable. Creates the variable if one with the requested name does not exist. Remove-Variable Cmdlet Deletes a variable and its value. Clear-Variable Cmdlet Deletes the value of a variable. 示例: Get-Variabl...
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Windows PowerShell reserves a few parameter names, referred to as Common parameters, which you can't use: WhatIf, Confirm, Verbose, Debug, ErrorAction, ErrorVariable, OutVariable, and OutBuffer. In addition, the following aliases for these parameter names are reserved: vb, db, ea, ev, ov...
You can also provide a secure string as a converted clear-text variable, although this is highly discouraged. For example: PowerShell Uninstall-ADDSDomainController-LocalAdministratorPassword(ConvertTo-SecureString"Password1"-AsPlainText-Force)
-ErrorAction:SilentlyContinue parameter is not being respected & $error variable not updated -ExpandProperty & Export CSV !!! powershell script to add a word in the beginning of the text file - URGENT !!! 'A positional parameter cannot be found that accepts argument '$null'. 'Name' Attribut...
Clear-Item Deletes the contents of an item, but does not delete the item. clp Clear-ItemProperty Deletes the value of a property but does not delete the property. cls Clear-Host Clears the display in the host program. clv Clear-Variable Deletes the value of a variable. cnsn...
Clear-History Deletes entries from the command history. Clear-Item Deletes the contents of an item but does not delete the item. Clear-ItemProperty Deletes the value of a property but does not delete the property. Clear-Variable Deletes the value of a variable. Compare-Object Compares two ...