[英]powershell : command does not work when called inside a loop
以下命令在Powershell控制台中有效
Restore-SvnRepository D:\temp\Backup\foo.vsvnbak
(還原- SvnRepository是帶有一個命令的VisualSVN ,它期望被恢復作為參數到文件路徑或UNC)
因為我需要對大量文件(> 500)執行此命令,所以我將其嵌入到powershell循環中,但是它不起作用
$fileDirectory = "D:\temp\Backup"
$files = Get-ChildItem $fileDirectory -Filter "*.vsvnbak"
foreach($file in Get-ChildItem $fileDirectory)
{
$filePath = $fileDirectory + "\" + $file;
# escape string for spaces
$fichier = $('"' + $filepath + '"')
# write progress status
"processing file " + $fichier
# command call
Restore-SvnRepository $fichier
}
Write-Host -NoNewLine 'Press any key to continue...';
$null = $Host.UI.RawUI.ReadKey('NoEcho,IncludeKeyDown');
我不明白為什么這行不通。 循環和文件名看起來不錯,但是在執行時,每個命令都會引發以下錯誤消息
Restore-SvnRepository : Parameter 'BackupPath' should be an absolute or UNC path to the repository
backup file you would like to restore: Invalid method Parameter(s) (0x8004102F)
你可以幫幫我嗎?
編輯
看起來我對Get-ChildItem感到困惑,因為它返回System.IO.FileSystemInfo而不是字符串。
我沒有注意到,因為在寫入控制台時隱式調用ToString(),使我認為我正在處理字符串(而不是FSI)
以下代碼有效
$fileDirectory = "D:\temp\Backup\"
$files = Get-ChildItem $fileDirectory -Filter "*.vsvnbak"
foreach($file in $files)
{
# $file is an instance of System.IO.FileSystemInfo,
# which contains a FullName property that provides the full path to the file.
$filePath = $file.FullName
Restore-SvnRepository -BackupPath $filePath
}
$file
不是字符串,而是包含文件數據的對象。
您可以按如下方式簡化代碼:
$fileDirectory = "D:\temp\Backup"
$files = Get-ChildItem $fileDirectory -Filter "*.vsvnbak"
foreach($file in $files)
{
# $file is an instance of System.IO.FileSystemInfo,
# which contains a FullName property that provides the full path to the file.
$filePath = $file.FullName
# ... your code here ...
}
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