From c1e7ace11cdd3b414c590b9eef39b9ade534702d Mon Sep 17 00:00:00 2001
From: Markus Fleschutz <markus@fleschutz.de>
Date: Wed, 7 Oct 2020 16:49:49 +0200
Subject: [PATCH] Added list-unused-files.ps1

---
 README.md                     |  1 +
 Scripts/list-unused-files.ps1 | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+)
 create mode 100644 Scripts/list-unused-files.ps1

diff --git a/README.md b/README.md
index fa960d2a..d5b38dba 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ The following PowerShell scripts can be found in the Scripts/ subfolder:
 * [download.ps1](Scripts/download.ps1) - downloads the file/directory from the given URL
 * [empty-dir.ps1](Scripts/empty-dir.ps1) - empties the given directory
 * [exe_info.ps1](Scripts/exe_info.ps1) - prints basic information of the given executable file
+* [list-unused-files.ps1](Scripts/list-unused-files.ps1) - lists unused files in a dir tree
 * [lscmdlets.ps1](Scripts/lscmdlets.ps1) - lists all PowerShell cmdlets
 * [lsmods.ps1](Scripts/lsmods.ps1) - lists all PowerShell modules
 * [lsproc.ps1](Scripts/lsproc.ps1) - lists the local computer processes
diff --git a/Scripts/list-unused-files.ps1 b/Scripts/list-unused-files.ps1
new file mode 100644
index 00000000..3b00663d
--- /dev/null
+++ b/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