Public/Add-EnvPath.ps1
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Function Add-EnvPath { <# .SYNOPSIS Add a Folder to Environment Variable PATH .DESCRIPTION Add Folders to Environment Variable PATH for Machine, User or Process scope And removes missing PATH locations .PARAMETER Path Folder or Folders to add to PATH .PARAMETER VariableTarget Which Env Path the directory gets added to. Machine, User or Process .PARAMETER Clean Remove all Folder Paths that no longer exist. .INPUTS [String] - Folder Path, accepts multiple folders .OUTPUTS String - List of the New Path Variable .EXAMPLE Add-EnvPath -Path 'C:\temp' -VariableTarget Machine #> param( [Parameter(Mandatory,ValueFromPipeline)] [ValidateScript({ if (-not (Test-Path -Path $_ -PathType Container)) { throw 'Path must be a Folder' } if (-not ([System.IO.Path]::IsPathRooted($_))) { throw 'Path must be absolute, such as - C:\Program Files\Notepad++' } return $true })] [String[]]$Path, [System.EnvironmentVariableTarget]$VariableTarget = [System.EnvironmentVariableTarget]::Machine, [switch]$Clean ) begin { if (-not (Test-IfAdmin)) { throw 'RUN AS ADMINISTRATOR' } $OldPath = [System.Environment]::GetEnvironmentVariable('PATH',$VariableTarget).Split(';').TrimEnd('\') if ($Clean) { $OldPath = $OldPath | Convert-Path -ErrorAction SilentlyContinue } $NewPath = [System.Collections.ArrayList]::new() $NewPath.AddRange($OldPath) } process{ foreach($NDir in $Path) { $NDir = (Convert-Path -Path $NDir -ErrorAction SilentlyContinue).TrimEnd('\') if ($NewPath -notcontains $NDir) { $null = $NewPath.Add($NDir) } else { Write-Warning -Message ('SKIPPING: {0} ' -f $NDir) } } } end { [System.Environment]::SetEnvironmentVariable('PATH',(($NewPath | Sort-Object -Unique) -join ';'),$VariableTarget) $Confirm = [System.Environment]::GetEnvironmentVariable('PATH',$VariableTarget).Split(';') return $Confirm } } |