Question

所有

我是Power Shell脚本的新手，我的第二个脚本不能100％正常工作。我不确定发生了什么。

目的：

检查特定进程是否正在运行。
如果正在运行，请发送电子邮件通知。
如果未运行，请尝试启动该过程。
如果尝试启动该过程，请重新检查过程是否已开始。

问题：

如果我更改脚本的目录位置（以确保它是错误的），我会收到正确的电子邮件。
如果流程正在运行，我会收到正确的电子邮件。
如果进程没有运行，脚本会正确启动进程，但会发送并发送电子邮件，说明进程在运行时没有运行。

脚本：

# Date and Date/Time stamping for files and logs.
$FileDateTimeStamp = get-date -uformat "%m%d%Y-%H%M%S"
$FileDateStamp = get-date -uformat "%m%d%Y"

# Logs directory.
$LogsDirectory = "C:\logs\"

# AS2 file information.
$AS2 = "C:\Program Files\nsoftware\AS2 Connector V2\as2app\bin\nsoftware.AS2Connector.exe"
$AS2ParentDirectory = "C:\Program Files\nsoftware\AS2 Connector V2"
$ProcessNameToCheck = "nsoftware.AS2Connector"
$ProcessIsRunning = Get-Process $ProcessNameToCheck -ErrorAction SilentlyContinue
$StartTheProcess = start-process -filepath $AS2
$SleepTime = 2

# Exchange information for sending emails.
$EmailServer = "email.me.com"
$EmailFrom = "me@me.com"
$AuthUser = "username"
$AuthPass = "password"
$EmailPort = 25
$MaxRetries = 1

# Blat log file location/name.
$BlatLogFile = $LogsDirectory + "BlatLog-" + $FileDateStamp + ".log"

# Blat information.
#$EmailTo = "smaguire@varietydistributors.com,abarnes@varietydistributors.com,tmalcom@varietydistributors.com"
$EmailTo = "smaguire@varietydistributors.com"
$EmailToSubjectSuccess = "AS2 Connector is running."
$EmailToBodySuccess = "The process check for AS2 Connector on OSPC was successful. AS2 Connector is running."
$EmailToSubjectFail = "AS2 Connector is NOT running."
$EmailToBodyFail = "The process check for AS2 Connector on OSPC was unsuccessful. Attempted to start the application which was also unsuccessful. AS2 Connector is NOT currently running on OSPC."
$EmailToSubjectNotInstalled = "AS2 Connector Installation Not Found."
$EmailToBodyNotInstalled = "The process check for AS2 Connector on OSPC failed because AS2 Connector does not seem to be installed."
$XHeaderInfo = "Email sent from OSPC"

function WriteLogFile {
    #Code snippet obtained from: http://poshcode.org/2566

    [cmdletbinding()]
    Param(
        [Parameter(ValueFromPipeline=$true,Mandatory=$true)] [ValidateNotNullOrEmpty()]
        [string] $Message,

        [Parameter()] [ValidateSet(“Error”, “Warn”, “Info”)]
        [string] $Level = “Info”,

        [Parameter()] [ValidateRange(1,30)]
        [Int16] $Indent = 0,

        [Parameter()]
        [IO.FileInfo] $ScriptLogFile = $LogsDirectory + "ScriptLog-" + $FileDateStamp + ".log",

        [Parameter()]
        [Switch] $Clobber,

        [Parameter()]
        [String] $EventLogName,

        [Parameter()]
        [String] $EventSource = ([IO.FileInfo] $MyInvocation.ScriptName).Name,

        [Parameter()]
        [Int32] $EventID = 1
    )

    Begin {}

    Process {
        try {           
            $msg = '{0}{1} : {2} : {3}' -f (" " * $Indent), (Get-Date -Format “yyyy-MM-dd HH:mm:ss”), $Level.ToUpper(), $Message

            switch ($Level) {
                'Error' { Write-Error $Message }
                'Warn' { Write-Warning $Message }
                'Info' { Write-Host ('{0}{1}' -f (" " * $Indent), $Message) -ForegroundColor White}
            }

            if ($Clobber) {
                $msg | Out-File -FilePath $ScriptLogFile
            } else {
                $msg | Out-File -FilePath $ScriptLogFile -Append
            }

            if ($EventLogName) {
                if(-not [Diagnostics.EventLog]::SourceExists($EventSource)) { 
                    [Diagnostics.EventLog]::CreateEventSource($EventSource, $EventLogName) 
                } 
                $log = New-Object System.Diagnostics.EventLog  
                $log.set_log($EventLogName)  
                $log.set_source($EventSource) 

                switch ($Level) {
                    “Error” { $log.WriteEntry($Message, 'Error', $EventID) }
                    “Warn”  { $log.WriteEntry($Message, 'Warning', $EventID) }
                    “Info”  { $log.WriteEntry($Message, 'Information', $EventID) }
                }
            }
        } catch {
            throw “Failed to create log entry in: ‘$ScriptLogFile’. The error was: ‘$_’.”
        }
    }

    End {}
}

if (test-path $AS2ParentDirectory) {
    # AS2 is installed on this machine.
    # Check for the running process.
    if (!($ProcessIsRunning)) {
        # Process is not found = not runing.
        # Try to start the process.
        # Once start attempt is complete, recheck to make sure failed or succeeded.
        # Failed: send an alert email through blat.
        # Succeeded: Send an alert email through blat.
        write-host "AS2 Connector is not running. Attempting to start."
        WriteLogFile -message "Script Line #142: AS2 Conenctor is not running. Attempting to start." -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        $StartTheProcess

        # Give the process a little time to start before checking. Wait X seconds.
        write-host "Going to sleep for $SleepTime seconds."
        WriteLogFile -message "Script Line #147: Going to sleep for $SleepTime seconds." -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        start-sleep -s $SleepTime

            # Now, let's go ahead and recheck to see if the process started or not.
            if (!($ProcessIsRunning)) {
                # Process did not start successfully.
                write-host "AS2 Connector did not start successfully. Sending an email to advise."
                WriteLogFile -message "Script Line #162: AS2 Conenctor did not start successfully. Sending an email to advise." -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
                WriteLogFile -message "Sending an email to: $EmailTo" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
                WriteLogFile -message "Email Subject: $EmailToSubjectFail" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
                WriteLogFile -message "Email Body: $EmailToBodyFail" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
                C:\blat\blat.exe -to $EmailTo -s $EmailToSubjectFail -i $EmailFrom -body $EmailToBodyFail -server $EmailServer -f $EmailFrom -u $AuthUser -pw $AuthPass -port $EmailPort -try $MaxRetries -debug -log $BlatLogFile -timestamp -x $XHeaderInfo
            } else {
                # Process started successfully.
                write-host "AS2 Connector started successfully. Sending an email to advise."
                WriteLogFile -message "Script Line #154: AS2 Conenctor started successfully. Sending an email to advise." -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
                WriteLogFile -message "Sending an email to: $EmailTo" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
                WriteLogFile -message "Email Subject: $EmailToSubjectSuccess" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
                WriteLogFile -message "Email Body: $EmailToBodySuccess" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
                C:\blat\blat.exe -to $EmailTo -s $EmailToSubjectSuccess -i $EmailFrom -body $EmailToBodySuccess -server $EmailServer -f $EmailFrom -u $AuthUser -pw $AuthPass -port $EmailPort -try $MaxRetries -debug -log $BlatLogFile -timestamp -x $XHeaderInfo            
            }
    } else {
        # Process is found = running.
        # Send an email advising of running status.
        write-host "Verified AS2 Connector is running. Sending an email to advise."
        WriteLogFile -message "Script Line #130: Verified AS2 Conenctor is running. Sending an email to advise." -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        WriteLogFile -message "Sending an email to: $EmailTo" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        WriteLogFile -message "Email Subject: $EmailToSubjectSuccess" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        WriteLogFile -message "Email Body: $EmailToBodySuccess" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        C:\blat\blat.exe -to $EmailTo -s $EmailToSubjectSuccess -i $EmailFrom -body $EmailToBodySuccess -server $EmailServer -f $EmailFrom -u $AuthUser -pw $AuthPass -port $EmailPort -try $MaxRetries -debug -log $BlatLogFile -timestamp -x $XHeaderInfo
    }
} else {
    # AS2 is not installed on this machine.
    # Send an email advising that there is a potential problem.
    write-host "AS2 Connector does not seem to be installed or is corrupt. Sending an email to advise."
    WriteLogFile -message "Script Line #173: AS2 Conenctor does not seem to be installed or is corrupt. Sending an email to advise." -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
    WriteLogFile -message "Sending an email to: $EmailTo" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
    WriteLogFile -message "Email Subject: $EmailToSubjectNotInstalled" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
    WriteLogFile -message "Email Body: $EmailToBodyNotInstalled" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
    C:\blat\blat.exe -to $EmailTo -s $EmailToSubjectNotInstalled -i $EmailFrom -body $EmailToBodyNotInstalled -server $EmailServer -f $EmailFrom -u $AuthUser -pw $AuthPass -port $EmailPort -try $MaxRetries -debug -log $BlatLogFile -timestamp -x $XHeaderInfo
}

出错的代码部分是：

    # Now, let's go ahead and recheck to see if the process started or not.
    if (!($ProcessIsRunning)) {
        # Process did not start successfully.
        write-host "AS2 Connector did not start successfully. Sending an email to advise."
        WriteLogFile -message "Script Line #162: AS2 Conenctor did not start successfully. Sending an email to advise." -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        WriteLogFile -message "Sending an email to: $EmailTo" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        WriteLogFile -message "Email Subject: $EmailToSubjectFail" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        WriteLogFile -message "Email Body: $EmailToBodyFail" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        C:\blat\blat.exe -to $EmailTo -s $EmailToSubjectFail -i $EmailFrom -body $EmailToBodyFail -server $EmailServer -f $EmailFrom -u $AuthUser -pw $AuthPass -port $EmailPort -try $MaxRetries -debug -log $BlatLogFile -timestamp -x $XHeaderInfo
    } else {
        # Process started successfully.
        write-host "AS2 Connector started successfully. Sending an email to advise."
        WriteLogFile -message "Script Line #154: AS2 Conenctor started successfully. Sending an email to advise." -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        WriteLogFile -message "Sending an email to: $EmailTo" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        WriteLogFile -message "Email Subject: $EmailToSubjectSuccess" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        WriteLogFile -message "Email Body: $EmailToBodySuccess" -level Info -EventID 3 -Indent 2 -EventLogName 'Application' -EventSource "AS2Check.ps1"
        C:\blat\blat.exe -to $EmailTo -s $EmailToSubjectSuccess -i $EmailFrom -body $EmailToBodySuccess -server $EmailServer -f $EmailFrom -u $AuthUser -pw $AuthPass -port $EmailPort -try $MaxRetries -debug -log $BlatLogFile -timestamp -x $XHeaderInfo            
    }

Answer 1

$ProcessIsRunning = Get-Process $ProcessNameToCheck -ErrorAction SilentlyContinue
$StartTheProcess = start-process -filepath $AS2

运行这些行时，命令立即执行，结果存储在变量中。因此，如果进程未在脚本开头运行，$ProcessIsRunning将始终为null（未运行）。

解决方案是删除顶部的两行，并在脚本中替换以下变量的每个实例：

$ProcessIsRunning与(Get-Process $ProcessNameToCheck -ErrorAction SilentlyContinue)。防爆。 if(!(Get-Process $ProcessNameToCheck -ErrorAction SilentlyContinue)) { "not running" } else { "running" }。
$StartTheProcess与Start-Process -Filepath $AS2

您也可以尝试这种方法，这可能是您最初的计划：

$ProcessIsRunning = { Get-Process notepad -ErrorAction SilentlyContinue }
$StartTheProcess = { Start-Process notepad }

#Run the start-process command
$StartTheProcess.Invoke()

#This will run the get-process command whenever you call it by using the Invoke() method.
if(!$ProcessIsRunning.Invoke()) {
    "Not running"
} else {
    "Running"
}

输出继电器：

Running

Answer 2

此$StartTheProcess = start-process -filepath $AS2保存运行启动过程的结果。如果脚本中有一行代码$StartTheProcess（正如您所做），则不要指望它运行命令;它只会显示最初保存的输出。

在适当的位置拨打start-process，或使用功能。

编辑：正如评论所说，（我错过了）你还需要重新检查进程是否正在运行。在第二次检查之前重新运行此行。

$ProcessIsRunning = Get-Process $ProcessNameToCheck -ErrorAction SilentlyContinue

确定进程是否正在运行

2 个答案: