functions/Remove-DbaClientAlias.ps1
function Remove-DbaClientAlias { <# .SYNOPSIS Removes a sql alias for the specified server - mimics cliconfg.exe .DESCRIPTION Removes a sql alias for the specified server by altering HKLM:\SOFTWARE\Microsoft\MSSQLServer\Client - mimics cliconfg.exe. .PARAMETER ComputerName The target computer where the alias will be created. .PARAMETER Credential Allows you to login to remote computers using alternative credentials .PARAMETER Alias The alias or array of aliases to be deleted .PARAMETER WhatIf If this switch is enabled, no actions are performed but informational messages will be displayed that explain what would happen if the command were to run. .PARAMETER Confirm If this switch is enabled, you will be prompted for confirmation before executing any operations that change state. .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .NOTES Tags: Alias Author: Chrissy LeMaire (@cl), netnerds.net Website: https://dbatools.io Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Remove-DbaClientAlias .EXAMPLE PS C:\> Remove-DbaClientAlias -ComputerName workstationx -Alias sqlps Removes the sqlps SQL client alias on workstationx .EXAMPLE PS C:\> Get-DbaClientAlias | Remove-DbaClientAlias Removes all SQL Server client aliases on the local computer #> [CmdletBinding(SupportsShouldProcess)] param ( [parameter(ValueFromPipelineByPropertyName)] [DbaInstanceParameter[]]$ComputerName = $env:COMPUTERNAME, [PSCredential]$Credential, [parameter(Mandatory, ValueFromPipelineByPropertyName)] [Alias('AliasName')] [string[]]$Alias, [switch]$EnableException ) begin { $scriptBlock = { $Alias = $args $basekeys = "HKLM:\SOFTWARE\WOW6432Node\Microsoft\MSSQLServer", "HKLM:\SOFTWARE\Microsoft\MSSQLServer" foreach ($basekey in $basekeys) { $fullKey = "$basekey\Client\ConnectTo" if ((Test-Path $fullKey) -eq $false) { <# DO NOT use Write-Message as this is inside of a script block #> Write-Warning "Registry key ($fullKey) does not exist on $env:COMPUTERNAME" continue } if ($basekey -like "*WOW64*") { $architecture = "32-bit" } else { $architecture = "64-bit" } $all = Get-Item -Path $fullKey foreach ($entry in $all) { $e = $entry.ToString().Replace('HKEY_LOCAL_MACHINE', 'HKLM:\') foreach ($a in $Alias) { if ($entry.Property -contains $a) { $null = Remove-ItemProperty -Path $e -Name $a [PSCustomObject]@{ ComputerName = $env:COMPUTERNAME Architecture = $architecture Alias = $a Status = "Removed" } } } } } } } process { foreach ($computer in $ComputerName) { $null = Test-ElevationRequirement -ComputerName $computer -Continue if ($PSCmdlet.ShouldProcess("$($Alias -join ', ') on $computer", "Remove aliases")) { try { Invoke-Command2 -ComputerName $computer -Credential $Credential -ScriptBlock $scriptBlock -ErrorAction Stop -Verbose:$false -ArgumentList $Alias } catch { Stop-Function -Message "Failure" -ErrorRecord $_ -Target $computer -Continue } } } } } # 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