Expand-Command.ps1
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# If the command is an alias, this expands it to be the full command # name. If it's not an alias, it exits untouched. function Expand-Command { [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSUseOutputTypeCorrectly", "", Justification = "False positive - https://github.com/PowerShell/PSScriptAnalyzer/issues/676")] [CmdletBinding()] Param( [Parameter(Mandatory = $True, Position = 0)] [ValidateNotNullOrEmpty()] [string] $Command ) $alias = Get-Alias -Name $Command -ErrorAction Ignore if (($null -eq $alias) -or ($null -eq $alias.ResolvedCommandName)) { Write-Verbose "$Command is not an alias." return $Command } $resolved = $alias.ResolvedCommandName $pathext = $Env:PATHEXT; if ($null -eq $pathext) { Write-Verbose "$Command is an alias for $resolved." return $resolved } foreach ($ext in $pathext.Split(';')) { if ($resolved.EndsWith($ext, [System.StringComparison]::OrdinalIgnoreCase)) { $resolved = $resolved.Substring(0, $resolved.Length - $ext.Length) break } } Write-Verbose "$Command is an alias for $resolved." return $resolved } |