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[英]PowerShell - How do you get the latest windows updates from a list of servers? Array/For Each problem
[英]How do you code in Powershell to get the latest date from an array?
我的文件夾如下:-10-17-17-10-18-17-10-19-17-10-20-17
我想讓PS吐出10-20-17是我文件夾結構中的最新文件夾。 我沒有線索可以從這里走:
$path = "C:\Users\JJames\Desktop\Folder Structure Test"
$todaydate = Get-Date -Format "MM-dd-yy"
$arr = Get-ChildItem $path |
Where-Object {$_.PSIsContainer} |
Foreach-Object {$_.Name}
我能夠吐出每個文件夾的名稱。
您應該能夠對對象進行排序:
$path = "C:\Users\JJames\Desktop\Folder Structure Test"
$todaydate = Get-Date -Format "MM-dd-yy"
$folders = Get-ChildItem $path |
Where-Object {$_.PSIsContainer}
$folders | Sort-Object { [DateTime]::Parse($_.Name)} -Descending
這是簡短的方法,沒有錯誤處理日期格式。
僅獲得第一項(堅持超級快捷簡便)
($dateStrings | Sort{ [DateTime]::Parse($_.Name)} -Descending)[0]
嘗試這個:
$path = "C:\temp"
$dirDate=New-Object DateTime
Get-ChildItem $path -Directory | %{
if ([DateTime]::TryParseExact($_.Name,
"MM-dd-yy",
[System.Globalization.CultureInfo]::InvariantCulture,
[System.Globalization.DateTimeStyles]::None,
[ref] $dirDate)
)
{
$_ | Add-Member -MemberType NoteProperty "DateName" -Value $dirDate
$_
}
} | sort DateName -Descending | select -First 1
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