PowerShell/Scripts/list-unused-files.ps1

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#!/snap/bin/powershell
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<#
.SYNTAX ./list-unused-files.ps1 <dirtree> <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
#>
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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)
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Get-ChildItem -path $DirTree -recurse | Where-Object {$_.LastAccessTime -le $cutOffDate} | select fullname
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exit 0
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} catch {
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write-error "ERROR in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
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exit 1
}