findDuplicatesInPath.ps1

### findDuplicatesInPath.ps1
### Andrew Matheny - andrew.j.matheny@gmail.com
###
### Powershell script that examines all exes in directories in the Path environment
### variable and prints a listing of duplicates and their respective paths.

$dirs = $Env:PATH.Split(';');

$exehash = @{};
foreach($d in $dirs)
{
	$d = $(New-Object -ComObject wscript.shell).ExpandEnvironmentStrings($d);
	
	if(![System.IO.Directory]::Exists($d)) { continue;}
	
	$files = Get-ChildItem -name $d | FindStr /e \.exe;
	foreach($file in $files)
	{
		$exehash[$file] = $exehash[$file] +  ";" + $d + "\" + $file;
	}
}

foreach($key in $exehash.Keys)
{
	$split = $exehash[$key].Split(';');
	if($split.length -gt 2)
	{
		echo $key;
		foreach($match in $split)
		{
			echo $("    " + $match);
		}
		echo "";
	}
}