Added list-unused-files.ps1

Scripts/list-unused-files.ps1

@@ -0,0 +1,20 @@
+#!/snap/bin/powershell
+#
+# Syntax:       ./list-unused-files.ps1 <dirtree> <days>
+# Description:	lists files in the <directory tree> with last access time older than <days>
+# Author:	Markus Fleschutz
+# Source:	github.com/fleschutz/PowerShell
+# License:	CC0
+
+param([string]$DirTree, [int]$NumberOfDaysUnused)
+
+write-host "Listing files in $DirTree with last access time older than $NumberOfDaysUnused days"
+
+try {
+	$cutOffDate = (Get-Date).AddDays(-$NumberOfDaysUnused)
+
+	Get-ChildItem -Path $DirTree -Recurse | Where-Object {$_.LastAccessTime -le $cutOffDate} | select fullname
+
+	exit 0
+} catch { Write-Error $Error[0] }
+exit 1