Check-Symlinks

Checks all symlinks in a dir tree

Script

param([string]$path = "")

try {
	if ($path -eq "" ) { $path = Read-Host "Enter the file path to the directory tree" }

	$stopWatch = [system.diagnostics.stopwatch]::startNew()
	$fullPath = Resolve-Path "$path"
	"? Checking symlinks at $fullPath including subfolders..."

	[int]$numTotal = [int]$numBroken = 0
	Get-ChildItem $fullPath -recurse  | Where { $_.Attributes -match "ReparsePoint" } | ForEach-Object {
		$Symlink = $_.FullName
		$Target = ($_ | Select-Object -ExpandProperty Target -ErrorAction Ignore)
		if ($Target) {
			$path = $_.FullName + "\..\" + ($_ | Select-Object -ExpandProperty Target)
			$item = Get-Item $path -ErrorAction Ignore
			if (!$item) {
				$numBroken++
				"Broken symlink #$($numBroken) at $Symlink linking to: $Target"
			}
		}
		$numTotal++
	}

	[int]$elapsed = $stopWatch.Elapsed.TotalSeconds
	if ($numTotal -eq 0) {
		"? No symlinks at $fullPath (took $($elapsed)s)." 
	} elseif ($numBroken -eq 0) {
		"? No broken symlinks at $fullPath ($numTotal symlinks in total, took $($elapsed)s)." 
	} elseif ($numBroken -eq 1) {
		"?? 1 broken symlink within $fullPath ($numTotal symlinks in total, took $($elapsed)s)."
	} else {
		"?? $numBroken broken symlinks within $fullPath ($numTotal symlinks in total, took $($elapsed)s)."
	}
	exit $numBroken
} catch {
	"?? ERROR: $($Error[0]) (script line $($_.InvocationInfo.ScriptLineNumber))"
	exit 1
}

Customize

path string

Specifies the file path to the directory tree