我编写了以下PS脚本来删除特定服务器路径中的日志文件。我是PS的新手，但是我在这个脚本中编写的一些函数出现了一些错误：
#* FileName: FileCleaner.ps1
#Clear the screen
Clear
#Read XML Config File to get settings
[xml]$configfile = Get-Content "C:\Users\pmcma\Documents\Projects\Replace FileCleaner with PowerShell Script\FileCleaner.config.xml"
#Declare and set variables from Config values
$hostServer = $configfile.Settings.HostServer
$dirs = @($configfile.Settings.DirectoryName.Split(",").Trim())
$scanSubDirectories = $configfile.Settings.ScanSubDirectories
$deleteAllFiles = $configfile.Settings.deleteAllFiles
$fileTypesToDelete = @($configfile.Settings.FileTypesToDelete.Split(";").Trim())
$liveSiteLogs = $configfile.Settings.LiveSiteLogs
$fileExclusions = @($configfile.Settings.FileExclusions.Split(";").Trim())
$retentionPeriod = $configfile.Settings.RetentionPeriod
$AICLogs = $configfile.Settings.AICLogs
$AICLogsRententionPeriod = $configfile.Settings.AICLogsRententionPeriod
$fileCleanerLogs = $configfile.Settings.FileCleanerLogs
$fileCleanerLogsRententionPeriod = $configfile.Settings.FileCleanerLogsRententionPeriod
#Setup FileCleaner output success logfiles
$successLogfile = $configfile.Settings.SuccessOutputLogfile
$dirName = [io.path]::GetDirectoryName($successLogfile)
$filename = [io.path]::GetFileNameWithoutExtension($successLogfile)
$ext = [io.path]::GetExtension($successLogfile)
$successLogfile = "$dirName\$filename$(get-date -Format yyyy-MM-dd)$ext"
#Setup FileCleaner output error logfiles
$errorLogfile = $configfile.Settings.ErrorOutputLogfile
$dirName = [io.path]::GetDirectoryName($errorLogfile)
$filename = [io.path]::GetFileNameWithoutExtension($errorLogfile)
$ext = [io.path]::GetExtension($errorLogfile)
$errorLogfile = "$dirName\$filename$(get-date -Format yyyy-MM-dd)$ext"
#Setup Retention Period
$LastWrite = (Get-Date).AddDays(-$retentionPeriod)#.ToString("d")
$AICLastWrite = (Get-Date).AddDays(-$AICLogsRententionPeriod)#.ToString("d")
$fileCleanerLastWrite = (Get-Date).AddDays(-$fileCleanerLogsRententionPeriod)
#EMAIL SETTINGS
$smtpServer = $configfile.Settings.SMTPServer
$emailFrom = $configfile.Settings.EmailFrom
$emailTo = $configfile.Settings.EmailTo
$emailSubject = $configfile.Settings.EmailSubject
#Update the email subject to display the Host Server value
$emailSubject -replace "HostServer", $hostServer
$countUnaccessibleUNCPaths = 0
#Check Logfiles exists, if not create them
if(!(Test-Path -Path $successLogfile))
{
New-Item -Path $successLogfile –itemtype file
}
if(!(Test-Path -Path $errorLogfile))
{
New-Item -Path $errorLogfile –itemtype file
}
foreach ($dir in $dirs)
{
#needs a check to determine if server/the UNC Path is accessible. If it fails to connect, it needs to move on to the next UNC share but a flag needs to
#be generate to alert us to investigate why the UNC share was not accessible during the job run.
If(Test-Path -Path $dir)
{
#write to output logfile Directory info
$Msg = Write-Output "$(Get-Date -UFormat "%D / %T") - Accessing: $dir"
$Msg | out-file $successLogfile
If ($scanSubDirectories -eq "True")
{
If ($deleteAllFiles -eq "True")
{
#ScanSubDirectories and delete all files older than the $retentionPeriod, include Sub-Directories / also forces the deletion of any hidden files
$logFiles = Get-ChildItem -Path $dir -Force -Recurse -Exclude $fileExclusions[0],$fileExclusions[1] | Where { $_.LastWriteTime -le "$LastWrite" }
DeleteLogFiles($logFiles)
#foreach($logFile in $logFiles)
#{
# if($logFile -ne $null)
# {
# $Msg = Write-Output "$("Deleting File $logFile")"
# $Msg | out-file $successLogfile -append
# Remove-Item $logFile.FullName -Force
# }
#}
}
Else
{
#"ScanSubDirectories but only delete specified file types."
$logFiles = Get-Childitem $dir -Include $fileTypesToDelete[0],$fileTypesToDelete[1],$fileTypesToDelete[2], $liveSiteLogs -Recurse -Exclude $fileExclusions[0],$fileExclusions[1] | Where {$_.LastWriteTime -le "$LastWrite"}
DeleteLogFiles($logFiles)
#foreach($logFile in $logFiles)
#{
# if($logFile -ne $null)
# {
# $Msg = Write-Output "$("Deleting File $logFile")"
# $Msg | out-file $successLogfile -append
# Remove-Item $logFile.FullName -Force
# }
#}
}
}
Else
{
#Only delete files in top level Directory
If ($deleteAllFiles -eq "True")
{
$logFiles = Get-ChildItem -Path $dir -Force -Exclude $fileExclusions[0],$fileExclusions[1] | Where { $_.LastWriteTime -le "$LastWrite" }
DeleteLogFiles($logFiles)
#foreach($logFile in $logFiles)
#{
# if($logFile -ne $null)
# {
# $Msg = Write-Output "$("Deleting File $logFile")"
# $Msg | out-file $successLogfile -append
# Remove-Item $logFile.FullName -Force
# }
#}
}
Else
{
$logFiles = Get-Childitem $dir -Include $fileTypesToDelete[0],$fileTypesToDelete[1],$fileTypesToDelete[2], $liveSiteLogs -Exclude $fileExclusions[0],$fileExclusions[1] | Where {$_.LastWriteTime -le "$LastWrite"}
DeleteLogFiles($logFiles)
#foreach($logFile in $logFiles)
#{
# if($logFile -ne $null)
# {
# $Msg = Write-Output "$("Deleting File $logFile")"
# $Msg | out-file $successLogfile -append
# Remove-Item $logFile.FullName -Force
# }
#}
}
}
}
Else
{
$countUnaccessibleUNCPaths++
#server/the UNC Path is unaccessible
$Msg = Write-Output "$(Get-Date -UFormat "%D / %T") Unable to access $dir."
$Msg | out-file $errorLogfile -append
}
# Call the function to Delete the AIC XML Logfiles
DeleteAICXMLLogs $dir
}
#If any of the directories were unaccessible send an email to alert the team
if($countUnaccessibleUNCPaths.count -gt 0)
{
# Call the function to send the email
SendEmail $emailSubject $emailFrom $emailTo
}
#Only keep 2 weeks worth of the FileCleaner App logs for reference purposes
If(Test-Path -Path $fileCleanerLogs)
{
#write to output logfile Directory info
$Msg = Write-Output "$(Get-Date -UFormat "%D / %T") - Accessing: $fileCleanerLogs"
$Msg | out-file $successLogfile
$fileCleanerLogs = Get-Childitem $fileCleanerLogs -Recurse | Where {$_.LastWriteTime -le "$fileCleanerLastWrite"}
DeleteLogFiles($fileCleanerLogs)
#foreach($fileCleanerLog in $fileCleanerLogs)
#{
# if($fileCleanerLog -ne $null)
# {
# $Msg = Write-Output "$("Deleting File $fileCleanerLog")"
# $Msg | out-file $successLogfile -append
# Remove-Item $fileCleanerLog.FullName -Force
# }
#}
}
Function DeleteLogFiles($logFiles)
{
foreach($logFile in $logFiles)
{
if($logFile -ne $null)
{
$Msg = Write-Output "$("Deleting File $logFile")"
$Msg | out-file $successLogfile -append
Remove-Item $logFile.FullName -Force
}
}
}
Function DeleteAICXMLLogs($dir)
{
#Split the UNC path $dir to retrieve the server value
$parentpath = "\\" + [string]::join("\",$dir.Split("\")[2])
#test access to the \\server\D$\DebugXML path
If(Test-Path -Path $parentpath$AICLogs)
{
$Msg = Write-Output "$(Get-Date -UFormat "%D / %T") - Accessing: $parentpath$AICLogs"
$Msg | out-file $successLogfile
#Concantenate server value to $AICLogs to delete all xml logs in \\server\D$\DebugXML with a retention period of 30Days
$XMLlogFiles = Get-ChildItem -Path $parentpath$AICLogs -Force -Include $fileTypesToDelete[3]-Recurse -Exclude $fileExclusions[0],$fileExclusions[1] | Where { $_.LastWriteTime -le "$AICLastWrite" }
#get each file and add the filename to be deleted to the successLogfile before deleting the file
DeleteLogFiles($XMLlogFiles)
#foreach($XMLlogFile in $XMLlogFiles)
#{
# if($XMLlogFile -ne $null)
# {
# $Msg = Write-Output "$("Deleting File $XMLlogFile")"
# $Msg | out-file $successLogfile -append
# Remove-Item $XMLlogFile.FullName -Force
# }
#}
}
Else
{
$Msg = Write-Output "$("$parentpath$AICLogs does not exist.")"
$Msg | out-file $successLogfile -append
}
}
Function SendEmail($emailSubject, $emailFrom, $emailTo)
{
$MailMessage = New-Object System.Net.Mail.MailMessage
$SMTPClient = New-Object System.Net.Mail.smtpClient
$SMTPClient.host = $smtpServer
$Recipient = New-Object System.Net.Mail.MailAddress($emailTo, "Recipient")
$Sender = New-Object System.Net.Mail.MailAddress($emailFrom, "Sender")
$MailMessage.Sender = $Sender
$MailMessage.From = $Sender
$MailMessage.Subject = $emailSubject
$MailMessage.Body = @"
This email was generated because the FileCleaner script was unable to access some UNC Paths, please refer to $errorLogfile for more information.
Please inform the Team if you plan to resolve this.
This is an automated email please do not respond.
"@
$SMTPClient.Send($MailMessage)
}
调试时我遇到了这些错误：
DeleteAICXMLLogs：术语'DeleteAICXMLLogs'不被识别为 cmdlet，函数，脚本文件或可运行程序的名称。 检查名称的拼写，或者如果包含路径，请验证 路径是正确的，然后再试一次。在 C：\ Users \ pmcma \ Documents \ Projects \用PowerShell替换FileCleaner Script \ FileCleaner.ps1：158 char：5 + DeleteAICXMLLogs $ dir + ~~~~~~~~~~~~~~~~ + CategoryInfo：ObjectNotFound：（DeleteAICXMLLogs：String）[]，CommandNotFoundException + FullyQualifiedErrorId：CommandNotFoundException
SendEmail：“SendEmail”一词不会被识别为a的名称 cmdlet，函数，脚本文件或可操作程序。检查拼写 如果包含名称，或者包含路径，请验证路径是否正确 正确，然后再试一次。在C：\ Users \ pmcma \ Documents \ Projects \ Replace FileCleaner与PowerShell Script \ FileCleaner.ps1：164 char：5 + SendEmail $ emailSubject $ emailFrom $ emailTo + ~~~~~~~~~ + CategoryInfo：ObjectNotFound：（SendEmail：String）[]，CommandNotFoundException + FullyQualifiedErrorId：CommandNotFoundException
DeleteLogFiles：“DeleteLogFiles”一词不被识别为 cmdlet的名称，函数，脚本文件或可运行的程序。校验 名称的拼写，或者如果包含路径，请验证 路径是正确的，然后再试一次。在 C：\ Users \ pmcma \ Documents \ Projects \用PowerShell替换FileCleaner Script \ FileCleaner.ps1：175 char：5 + DeleteLogFiles（$ fileCleanerLogs） + ~~~~~~~~~~~~~~ + CategoryInfo：ObjectNotFound：（DeleteLogFiles：String）[]，CommandNotFoundException + FullyQualifiedErrorId：CommandNotFoundException
我没有看到我如何声明功能或调用它们有什么问题。任何想法为什么这个脚本失败？
答案 0 :(得分：4)
PowerShell脚本从上到下读取，因此您无法在定义之前使用任何引用，这很可能就是您收到错误的原因。 尝试在您调用它们的位置上方添加功能定义块。
或者，您可以创建具有全局范围的函数。只需在函数名称前加上关键字 global：，例如
function global:test ($x, $y)
{
$x * $y
}
答案 1 :(得分：2)
我也发生了这种情况。尝试在业务逻辑之前放置函数。这是一个脚本，而不是编译代码。因此，在调用函数之前，函数尚未声明。