【发布时间】：2021-05-04 00:08:09
【问题描述】：
以下是监控目录及其子文件夹中存放的文件的脚本。每隔 10 分钟左右，我会查找新文件，然后将它们与一个数据库表进行匹配，该数据库表告诉我需要将它们移动到哪里 - 然后它将文件复制到本地存档，将它们移动到需要移动的位置到，并将一条记录插入到另一个数据库表中，其中包含文件的属性以及文件的来源和去向。如果数据库中没有匹配项 - 或者存在脚本错误 - 它会向我发送一封电子邮件。
但是，由于文件不断地存放到目录中，因此脚本执行时可能仍在写入文件。结果，我一直收到错误 The process cannot access the file because it is being used by another process. 通过电子邮件发送给我。另外，因为我没有预先处理错误；它通过循环，并且错误的条目被插入到数据库中的我的日志表中，并且文件属性不正确。当文件最终释放时，它会再次插入。
我正在寻找一种方法来识别附加了进程的文件；并在脚本执行时跳过它们 - 但是几天的网络搜索和一些测试尚未产生答案。
## CLEAR ERROR LOG
$error.clear()
Write-Host "***File Transfer Script***"
## PARAMETERS
$source_path = "D:\Files\In\"
$xferfail_path = "D:\Files\XferFailed\"
$archive_path = "D:\Files\XferArchive\"
$email_from = "SQLMail <SQLMail@bar.com>"
$email_recip = [STRING]"foo@bar.com"
$smtp_server = "email.bar.com"
$secpasswd = ConvertTo-SecureString "Pa$$w0rd" -AsPlainText -Force
$smtp_cred = New-Object System.Management.Automation.PSCredential ("BAR\SQLAdmin", $secpasswd)
## SQL LOG FUNCTION
function Run-SQL ([string]$filename, [string]$filepath, [int]$filesize, [int]$rowcount, [string]$xferpath)
{
$date = get-date -format G
$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server=SQLSERVER;Database=DATABASE;Uid=SQLAdmin;Pwd=Pa$$w0rd;"
$SqlConnection.Open()
$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = "INSERT INTO DATABASE..Table VALUES ('$date','$filename','$filepath',$filesize,$rowcount,'$xferpath',0)"
$SqlCmd.Connection = $SqlConnection
$SqlCmd.ExecuteNonQuery()
$SqlConnection.Close()
}
## DETERMINE IF THERE ARE ANY FILES TO PROCESS
$file_count = Get-ChildItem -path $source_path |? {$_.PSIsContainer} `
| Get-ChildItem -path {$_.FullName} -Recurse | Where {$_.psIsContainer -eq $false} | Where {$_.Fullname -notlike "D:\Files\In\MCI\*"} `
| Measure-Object | Select Count
If ($file_count.Count -gt 0)
{
Write-Host $file_count.Count "File(s) Found - Processing."
Start-Sleep -s 5
## CREATE LIST OF DIRECTORIES
$dirs = Get-ChildItem -path $source_path -Recurse | Where {$_.psIsContainer -eq $true} | Where {$_.Fullname -ne "D:\Files\In\MCI"} `
| Where {$_.Fullname -notlike "D:\Files\In\MCI\*"}
## CREATE LIST OF FILES IN ALL DIRECTORIES
$files = ForEach ($item in $dirs)
{
Get-ChildItem -path $item.FullName | Where {$_.psIsContainer -eq $false} | Sort-Object -Property lastWriteTime -Descending
}
## START LOOPING THROUGH FILE LIST
ForEach ($item in $files)
{
## QUERY DATABASE FOR FILENAME MATCH, AND RETURN TRANSFER DIRECTORY
$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server=SQLSERVER;Database=DATABASE;Uid=SQLAdmin;Pwd=Pa$$w0rd;"
$SqlConnection.Open()
$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = "SELECT F.DirTransfer FROM DATABASE..Files F WHERE '$item.Name.Trim()' LIKE F.FileName"
$SqlCmd.Connection = $SqlConnection
$DirTransfer = $SqlCmd.ExecuteScalar()
$SqlConnection.Close()
If ($DirTransfer) # if there is a match
{
Write-Host $item.FullName"`t->`t"$DirTransfer
$filename = $item.Name
$filepath = $item.FullName
$filesize = $item.Length
If (!($filesize))
{
$filesize = 0
}
$rowcount = (Get-Content -Path $item.FullName).Length
If (!($rowcount))
{
$rowcount = 0
}
$xferpath = $DirTransfer
Run-SQL -filename "$filename" -filepath "$filepath" -filesize "$filesize" -rowcount "$rowcount" -xferpath "$DirTransfer"
Copy-Item -path $item.FullName -destination $DirTransfer -force -erroraction "silentlycontinue"
Move-Item -path $item.FullName -destination $archive_path -force -erroraction "silentlycontinue"
#Write-Host "$filename $filepath $filesize $rowcount $xferpath"
}
Else # if there is no match
{
Write-Host $item.FullName "does not have a mapping"
Move-Item -path $item.FullName -destination $xferfail_path -force
$filename = $item.FullName
$email_body = "$filename `r`n`r`n does not have a file transfer mapping setup"
Send-MailMessage -To $email_recip `
-From $email_from `
-SmtpServer $smtp_server `
-Subject "File Transfer Error - $item" `
-Body $email_body `
-Priority "High" `
-Credential $smtp_cred
}
}
}
## IF NO FILES, THEN CLOSE
Else
{
Write-Host "No File(s) Found - Aborting."
Start-Sleep -s 5
}
## SEND EMAIL NOTIFICATION IF SCRIPT ERROR
If ($error.count -gt 0)
{
$email_body = "$error"
Send-MailMessage -To $email_recip `
-From $email_from `
-SmtpServer $smtp_server `
-Subject "File Transfer Error - Script" `
-Body $email_body `
-Priority "High" `
-Credential $smtp_cred
}
【问题讨论】：
标签： powershell