Question

我安装了最新的Write-Log函数from this module，想知道是否有可能在此处而不是和/或在使用笔录的详细部分时应用该功能。

我现在想在try..catch中添加一个失败的地方，使用Write-Log函数将记录插入日志文件中

$varfullpath = "C:\Users\Simon.Evans\Documents\ReferenceData__logfile.txt"
Start-Transcript -Path $varfullpath -Append
Write-Output $varfullpath
[string]$sourceDirectory = "C:\Users\Simon.Evans\Documents\Source Data\LNAT\Code_Mapping.txt"
[string]$destinationDirectory = "I:\Dev\BI\Projects\Powershell\Test Area\Source Data\LNAT\Code_Mapping.txt"
Copy-Item -Force -Verbose $sourceDirectory -Destination $destinationDirectory
Stop-Transcript

有关信息，这是安装的Write-Log函数，鉴于我从没使用过函数，仍然没有怀疑它的工作方式。

<# 
.Synopsis 
   Write-Log writes a message to a specified log file with the current time stamp. 
.DESCRIPTION 
   The Write-Log function is designed to add logging capability to other scripts. 
   In addition to writing output and/or verbose you can write to a log file for 
   later debugging. 
.NOTES 
   Created by: Jason Wasser @wasserja 
   Modified: 11/24/2015 09:30:19 AM   

   Changelog: 
    * Code simplification and clarification - thanks to @juneb_get_help 
    * Added documentation. 
    * Renamed LogPath parameter to Path to keep it standard - thanks to @JeffHicks 
    * Revised the Force switch to work as it should - thanks to @JeffHicks 

   To Do: 
    * Add error handling if trying to create a log file in a inaccessible location. 
    * Add ability to write $Message to $Verbose or $Error pipelines to eliminate 
      duplicates. 
.PARAMETER Message 
   Message is the content that you wish to add to the log file.  
.PARAMETER Path 
   The path to the log file to which you would like to write. By default the function will  
   create the path and file if it does not exist.  
.PARAMETER Level 
   Specify the criticality of the log information being written to the log (i.e. Error, Warning, Informational) 
.PARAMETER NoClobber 
   Use NoClobber if you do not wish to overwrite an existing file. 
.EXAMPLE 
   Write-Log -Message 'Log message'  
   Writes the message to c:\Logs\PowerShellLog.log. 
.EXAMPLE 
   Write-Log -Message 'Restarting Server.' -Path c:\Logs\Scriptoutput.log 
   Writes the content to the specified log file and creates the path and file specified.  
.EXAMPLE 
   Write-Log -Message 'Folder does not exist.' -Path c:\Logs\Script.log -Level Error 
   Writes the message to the specified log file as an error message, and writes the message to the error pipeline. 
.LINK 
   https://gallery.technet.microsoft.com/scriptcenter/Write-Log-PowerShell-999c32d0 
#> 
function Write-Log 
{ 
    [CmdletBinding()] 
    Param 
    ( 
        [Parameter(Mandatory=$true, 
                   ValueFromPipelineByPropertyName=$true)] 
        [ValidateNotNullOrEmpty()] 
        [Alias("LogContent")] 
        [string]$Message, 

        [Parameter(Mandatory=$false)] 
        [Alias('LogPath')] 
        [string]$Path='C:\Logs\PowerShellLog.log', 

        [Parameter(Mandatory=$false)] 
        [ValidateSet("Error","Warn","Info")] 
        [string]$Level="Info", 

        [Parameter(Mandatory=$false)] 
        [switch]$NoClobber 
    ) 

    Begin 
    { 
        # Set VerbosePreference to Continue so that verbose messages are displayed. 
        $VerbosePreference = 'Continue' 
    } 
    Process 
    { 

        # If the file already exists and NoClobber was specified, do not write to the log. 
        if ((Test-Path $Path) -AND $NoClobber) { 
            Write-Error "Log file $Path already exists, and you specified NoClobber. Either delete the file or specify a different name." 
            Return 
            } 

        # If attempting to write to a log file in a folder/path that doesn't exist create the file including the path. 
        elseif (!(Test-Path $Path)) { 
            Write-Verbose "Creating $Path." 
            $NewLogFile = New-Item $Path -Force -ItemType File 
            } 

        else { 
            # Nothing to see here yet. 
            } 

        # Format Date for our Log File 
        $FormattedDate = Get-Date -Format "yyyy-MM-dd HH:mm:ss" 

        # Write message to error, warning, or verbose pipeline and specify $LevelText 
        switch ($Level) { 
            'Error' { 
                Write-Error $Message 
                $LevelText = 'ERROR:' 
                } 
            'Warn' { 
                Write-Warning $Message 
                $LevelText = 'WARNING:' 
                } 
            'Info' { 
                Write-Verbose $Message 
                $LevelText = 'INFO:' 
                } 
            } 

        # Write log entry to $Path 
        "$FormattedDate $LevelText $Message" | Out-File -FilePath $Path -Append 
    } 
    End 
    { 
    } 
}

Answer 1

最后感谢大家的帮助，但是在途中犯了一些愚蠢的错误。


$varfullpath = "C:\Users\Simon.Evans\Documents\ReferenceData__logfile.txt"
$sourceDirectory  = "C:\Users\Simon.Evans\Documents\Source Data\LNAT\Code_Maping.txt"
$destinationDirectory = "I:\Dev\BI\Projects\Powershell\Test Area\Source Data\LNAT\Code_Mapping.txt"

try{
    Copy-item -Force  -Verbose $sourceDirectory -Destination $destinationDirectory  -ErrorAction Stop 
    Write-log -Message "Copy from $sourceDirectory to $destinationDirectory suceeded" -path $varfullpath  
}
catch{
    $Error[0] | Write-Log -path $varfullpath                                                                            ##Example Error 1
    Write-log -Message "Copy from $sourceDirectory to $destinationDirectory Failed" -Level Error -path $varfullpath     ##Example Error 2
}

如何将Write-Log函数应用于脚本

1 个答案: