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Powershell/Scripts/list-unused-files.ps1

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+<#
+.SYNTAX       list-unused-files.ps1 <dir-tree> <days>
+.DESCRIPTION  lists files in the <directory tree> with last access time older than <days>
+.LINK         https://github.com/fleschutz/PowerShell
+.NOTES        Author: Markus Fleschutz / License: CC0
+#>
+
+param($DirTree = "", [int]$NumberOfDaysUnused = 99)
+
+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 in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}