functions/Remove-DbaLinkedServer.ps1
function Remove-DbaLinkedServer { <# .SYNOPSIS Removes a linked server. .DESCRIPTION Removes a linked server. .PARAMETER SqlInstance The target SQL Server instance or instances. This can be a collection and receive pipeline input to allow the function to be executed against multiple SQL Server instances. .PARAMETER SqlCredential Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential). Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory - Integrated are all supported. For MFA support, please use Connect-DbaInstance. .PARAMETER LinkedServer The name(s) of the linked server(s). .PARAMETER InputObject Allows piping from Connect-DbaInstance and Get-DbaLinkedServer. .PARAMETER WhatIf Shows what would happen if the command were to run. No actions are actually performed. .PARAMETER Confirm Prompts you for confirmation before executing any changing operations within the command. .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: Security, Server Author: Adam Lancaster https://github.com/lancasteradam dbatools PowerShell module (https://dbatools.io) Copyright: (c) 2021 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Remove-DbaLinkedServer .EXAMPLE PS C:\>Remove-DbaLinkedServer -SqlInstance sql01 -LinkedServer linkedServer1 -Confirm:$false Removes the linked server "linkedServer1" from the sql01 instance. .EXAMPLE PS C:\>$linkedServer1 = Get-DbaLinkedServer -SqlInstance sql01 -LinkedServer linkedServer1 PS C:\>$linkedServer1 | Remove-DbaLinkedServer -Confirm:$false Passes in a linked server via pipeline and removes it from the sql01 instance. .EXAMPLE PS C:\>Connect-DbaInstance -SqlInstance sql01 | Remove-DbaLinkedServer -LinkedServer linkedServer1 -Confirm:$false Removes the linked server "linkedServer1" from the sql01 instance, which is passed in via pipeline. #> [CmdletBinding(SupportsShouldProcess, ConfirmImpact = 'High')] param ( [DbaInstanceParameter[]]$SqlInstance, [PSCredential]$SqlCredential, [string[]]$LinkedServer, [parameter(ValueFromPipeline)] [object[]]$InputObject, [switch]$EnableException ) begin { $linkedServersToDrop = @() } process { foreach ($instance in $SqlInstance) { $InputObject += Connect-DbaInstance -SqlInstance $instance -SqlCredential $SqlCredential } foreach ($obj in $InputObject) { if ($obj -is [Microsoft.SqlServer.Management.Smo.Server]) { if (Test-Bound -Not -ParameterName LinkedServer) { Stop-Function -Message "LinkedServer is required" -Continue } foreach ($ls in $LinkedServer) { if ($obj.LinkedServers.Name -notcontains $ls) { Stop-Function -Message "Linked server $ls does not exist on $($obj.Name)" -Continue } $linkedServersToDrop += $obj.LinkedServers[$ls] } } elseif ($obj -is [Microsoft.SqlServer.Management.Smo.LinkedServer]) { $linkedServersToDrop += $obj } } } end { foreach ($lsToDrop in $linkedServersToDrop) { if ($Pscmdlet.ShouldProcess($lsToDrop.Parent.Name, "Removing the linked server $($lsToDrop.Name) on $($lsToDrop.Parent.Name)")) { try { $lsToDrop.Drop() } catch { Stop-Function -Message "Failure on $($lsToDrop.Parent.Name) to remove the linked server $($lsToDrop.Name)" -ErrorRecord $_ -Continue } } } } } # 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