functions/get-lastModified.ps1
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Function Get-LastModifiedFile { [cmdletbinding()] [alias("glm")] [OutputType("System.IO.FileInfo")] Param( [Parameter(Position = 0, HelpMessage = "Specify a file filter like *.ps1.")] [ValidateNotNullOrEmpty()] [string]$Filter = "*", [Parameter(Position = 1, HelpMessage = "Specify the folder to search.")] [ValidateScript({ #this will write a custom error message if validation fails If ((Test-Path -path $_ -PathType Container) -AND ((Get-Item -path $_).psprovider.name -eq 'Filesystem')) { return $True } else { Throw "The specified Path value $_ is not a valid folder or not a file system location." return $False } })] [string]$Path = ".", [Parameter(HelpMessage = "Specify the search interval based on the last write time.")] [ValidateSet("Hours", "Minutes", "Days", "Months", "Years")] [string]$Interval = "Hours", [Parameter(HelpMessage = "Specify the number of intervals.")] [alias("ic")] [ValidateScript({$_ -ge 1})] [int32]$IntervalCount = 24, [Parameter(HelpMessage = "Recurse from the specified path.")] [switch]$Recurse ) Write-Verbose "Starting $($myinvocation.mycommand)" $msg ="Searching {0} for {1} files modified in the last {2} {3}." -f (Convert-Path $Path),$filter,$IntervalCount,$Interval Write-Verbose $msg switch ($Interval) { "minutes" { $last = (Get-Date).AddMinutes(-$IntervalCount) } "hours" { $last = (Get-Date).AddHours(-$IntervalCount) } "days" { $last = (Get-Date).AddDays(-$IntervalCount) } "months" { $last = (Get-Date).AddMonths(-$IntervalCount) } "years" { $last = (Get-Date).AddYears(-$IntervalCount) } } Write-Verbose "Cutoff date is $Last" #remove bound parameters that don't belong to Get-ChildItem "IntervalCount", "Interval" | ForEach-Object { if ($PSBoundParameters.ContainsKey($_)) { [void]$PSBoundParameters.Remove($_) } } #add -File to PSBoundParameters $PSBoundParameters.Add("file", $True) if ($recurse) { Write-Verbose "Recursing..." } else { Write-Verbose "Searching..." } #get the files and filter on the LastWriteTime using the Where() method for #better performance (Get-ChildItem @PSBoundParameters).Where({$_.LastWriteTime -ge $last}) Write-Verbose "Ending $($myinvocation.mycommand)" } |