我有一個帶有 If 陳述句和多個條件的 Powershell 腳本。我的代碼運行良好，但我正在尋找顯示我的物件不遵守的條件。
Get-ChildItem $Path -Directory -Force | ForEach-Object {
$FolderName = $_.BaseName -match $Folderpattern
$DateOK = $_.LastWriteTime -lt (Get-Date).AddDays(-3))
$Folder = $_.BaseName
if (($FolderName) -and ($DateOK) {
write-host("$Folder can be moved")
}
else {
write-host("$Folder can't be moved")
}
}
如果不遵守 $FolderName 條件，我想顯示“$folder 無法移動，因為它與模式不匹配”??。
如果不遵守 $DateOK 條件，則顯示“$folder can't be move because last write time is less than 3 days”。
謝謝您的幫助
uj5u.com熱心網友回復：
如果這只是為了檢查而不是為了在需要這些特定訊息的地方保存日志，我可能會采用一些簡單的方法，我們只需捕獲每個測驗的真值和假值。
$path = C:\temp
Get-ChildItem $Path -Directory -Force |
ForEach-Object {
[PSCustomObject]@{
Folder = $_.BaseName
LastWriteTime = $_.LastWriteTime
FolderNameTest = $_.BaseName -match 'test'
DateOKTest = $_.LastWriteTime -lt (Get-Date).AddDays(-30)
}
}
樣本輸出
Folder LastWriteTime FolderNameTest DateOKTest
------ ------------- -------------- ----------
.git 06.09.2021 01:06:06 False True
.vscode 25.09.2021 10:06:11 False True
1 22.09.2021 22:30:26 False True
batch_test 02.05.2022 22:29:25 True False
cleanup 20.09.2021 10:02:51 False True
DeviceDatabase 26.09.2021 12:07:26 False True
host 22.09.2021 23:23:38 False True
move_logs 26.04.2022 19:28:59 False False
test_run 01.03.2022 22:14:14 True True
Export-Csv然后，您可以根據需要將其通過管道傳輸到
uj5u.com熱心網友回復：
有多種方法可以解決這個問題；但這一條干凈且易于理解，因此是我的首選路線：
Function Move-FolderConditional { # todo: give this cmdlet a better name for your context
[CmdletBinding()]
Param (
[Parameter(Mandatory, ValueFromPipeline)]
[System.IO.DirectoryInfo[]]$Path
,
[Parameter(Mandatory)]
[System.IO.DirectoryInfo]$Destination
,
# files matching this pattern get moved to the target
[Parameter(Mandatory)]
[string]$ArchivableFolderPattern
,
# Files older than this date get moved to the target
[Parameter()]
[string]$MinKeepDateUtc = (Get-Date).AddDays(-3).ToUniversalTime()
)
Process {
foreach ($directory in $Path) {
if ($directory.BaseName -notmatch $ArchivableFolderPattern) {
Write-Warning "Could not move folder '$($directory.FullName)' as the name does not match the required pattern"
continue;
}
if ($directory.LastWriteTimeUtc -ge $MinKeepDateUtc) {
Write-Warning "Could not archive folder '$($directory.FullName)' as it was last updated at '$($directory.LastWriteTimeUtc.ToString('u'))'"
continue;
}
try {
#Move-Item -Path $directory -Destination $Destination -ErrorAction Stop # Uncommend this if you actually want to move your files
Write-Information "Successfully moved '$($directory.FullName)' to '$($Destination.FullName)'"
} catch [System.Management.Automation.ItemNotFoundException] { # For this exception we'd probably check in the Begin block instead - but this is just to give the idea that we could add a try/catch if required
Write-Warning "Could not archive folder '$($directory.FullName)' the target directory does not exist: '$($Destination.FullName)'"
}
}
}
}
# Example usage
Get-ChildItem $path -Directory -Force | Move-FolderConditional -ArchivableFolderPattern '^log' -InformationAction Continue -Destination 'z:\archive\'
但是還有其他選項可用（我剛剛包含了一些片段來說明這些要點）：
切換陳述句
switch ( $directory )
{
{$_.BaseName -notmatch $ArchivableFolderPattern}
{
Write-Warning "Could not move folder '$($_.FullName)' as the name does not match the required pattern"
break
}
{$_.LastWriteTimeUtc -ge $MinKeepDateUtc}
{
Write-Warning "Could not archive folder '$($_.FullName)' as it was last updated at '$($_.LastWriteTimeUtc.ToString('u'))'"
break
}
default
{
Write-Information "Successfully moved '$($_.FullName)' to '$($Destination.FullName)'"
}
}
標志
[bool]$archiveFolder = $true
if ($directory.BaseName -notmatch $ArchivableFolderPattern) {
Write-Warning "Could not move folder '$($directory.FullName)' as the name does not match the required pattern"
$archiveFolder = $false
}
if ($directory.LastWriteTimeUtc -ge $MinKeepDateUtc) {
# note: this will process even if archivefolder is already false... you can use `else` or amend the condition to include `$archiveFolder -or ($directory.LastWriteTimeUtc -ge $MinKeepDateUtc)`; though if going that route it's better to use the switch statement.
Write-Warning "Could not archive folder '$($directory.FullName)' as it was last updated at '$($_.LastWriteTimeUtc.ToString('u'))'"
$archiveFolder = $false
}
if ($archiveFolder) {
Write-Information "Successfully moved '$($directory.FullName)' to '$($Destination.FullName)'"
}
其他
或者你可以做上述的組合（例如，使用 switch 陳述句來設定你的標志（在這種情況下，你可以選擇洗掉，break以便顯示所有問題）。
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