which2.ps1

function which2 {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true,ValueFromPipeline=$true)]
        $Name
    )
    $ErrorActionPreference = 'Stop'

    try {
        [object]$getCommand  = Get-Command $Name
        [object]$commandType = $getCommand.CommandType

        switch ($commandType)
        {
            Application     { return ($getCommand | Format-List) }
            Alias           { try {
                                $gcmGcm = (Get-Command $($getCommand))
                                $gcmGcmDef = (Get-Command $($gcmGcm.Definition))
                                $gcmGcmType = (Get-Command $($gcmGcm.Definition)).CommandType
                                if ($gcmGcmType -eq 'ExternalScript') {
                                  return ($gcmGcmDef | Format-List -Property Source,ModuleName,CommandType,ScriptContents,Definition)
                                } else {
                                  return ($gcmGcmdef | Format-List -Property Source,ModuleName,CommandType,Definition,DisplayName)
                                }
                              } catch {
                                return ($getCommand | Format-List -Property Source,CommandType,Definition,DisplayName)
                              }
                            }
            ExternalScript  { return ($getCommand | Format-List -Property Source,ModuleName,CommandType,ScriptContents,Definition) }
            Default         { return ($getCommand | Format-List -Property Source,ModuleName,CommandType,Definition) }
        }
    }
    catch [System.Management.Automation.CommandNotFoundException] {
        $ErrorActionPreference = (-not($PSBoundParameters.ContainsKey('ErrorAction') -and ($PSBoundParameters['ErrorAction'] -ne $false)))
        $InformationPreference = (-not($PSBoundParameters.ContainsKey('InformationAction') -and ($PSBoundParameters['InformationAction'] -ne $false)))
        if ($wherecmd = $(where.exe *$Name* 2>$null)) {
            if (($null -ne $whereCmd) -and ($whereCmd.Count -ne 0)) {
                return "Command ${Name} not found, but there are $($whereCmd.Count) similar ones"
            }
        }
        return "${Name}: command not found"
    }
    catch [System.Management.Automation.RuntimeException],[System.InvalidOperationException],
        [System.Management.Automation.PSArgumentException] {
        if ($null -ne $getCommand) {
            $Error.Remove($error[0])
            $getcmdExpand = ($getCommand | Format-List -Expand Both)

            return $getcmdExpand
        }
    }
    catch {
        return "${Name}: command not found"
    }
    # .FORWARDHELPTARGETNAME Get-Command
    # .FORWARDHELPCATEGORY   Cmdlet
}

if (!($MyInvocation.InvocationName -eq '.' -or $MyInvocation.Line -eq '')) {
    which2 @args
} # else we're being dot-sourced, do nothing.

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