功能和powershell远程处理(Functions & powershell remoting)

功能和powershell远程处理(Functions & powershell remoting)

我有一个工作正常的脚本，但我想提高我的powershell知识，并想知道是否有更简单的方法来做到这一点.....

我的部分脚本连接到服务器并在其上提取bak文件和大小列表并将其导出到csv。

我找到了一个函数（Exportcsv），它允许我使用早期版本的powershell附加到csv。

目前，我使用invoke-command远程访问每个服务器，并在脚本块中运行脚本，但这意味着每次都要添加该功能。 所以我在我的脚本中有这个功能，但是我必须为我连接的每个服务器重复它，这样它才能远程运行

有没有办法将本地函数传递给远程服务器，所以我不必添加到每个调用命令。

Invoke-Command –ComputerName server –ScriptBlock { $wfile = "d:\folder\directorysize_H.csv" $xfile = "d:\folder\directorysize_F.csv" function ExportCSV { [CmdletBinding(DefaultParameterSetName='Delimiter', SupportsShouldProcess=$true, ConfirmImpact='Medium')] param( [Parameter(Mandatory=$true, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] [System.Management.Automation.PSObject] ${InputObject}, [Parameter(Mandatory=$true, Position=0)] [Alias('PSPath')] [System.String] ${Path}, #region -Append [Switch] ${Append}, #endregion [Switch] ${Force}, [Switch] ${NoClobber}, [ValidateSet('Unicode','UTF7','UTF8','ASCII','UTF32', 'BigEndianUnicode','Default','OEM')] [System.String] ${Encoding}, [Parameter(ParameterSetName='Delimiter', Position=1)] [ValidateNotNull()] [System.Char] ${Delimiter}, [Parameter(ParameterSetName='UseCulture')] [Switch] ${UseCulture}, [Alias('NTI')] [Switch] ${NoTypeInformation}) begin { # This variable will tell us whether we actually need to append # to existing file $AppendMode = $false try { $outBuffer = $null if ($PSBoundParameters.TryGetValue('OutBuffer', [ref]$outBuffer)) { $PSBoundParameters['OutBuffer'] = 1 } $wrappedCmd = $ExecutionContext.InvokeCommand.GetCommand('Export-Csv', [System.Management.Automation.CommandTypes]::Cmdlet) #String variable to become the target command line $scriptCmdPipeline = '' # Add new parameter handling #region Process and remove the Append parameter if it is present if ($Append) { $PSBoundParameters.Remove('Append') | Out-Null if ($Path) { if (Test-Path $Path) { # Need to construct new command line $AppendMode = $true if ($Encoding.Length -eq 0) { # ASCII is default encoding for Export-CSV $Encoding = 'ASCII' } # For Append we use ConvertTo-CSV instead of Export $scriptCmdPipeline += 'ConvertTo-Csv -NoTypeInformation ' # Inherit other CSV convertion parameters if ( $UseCulture ) { $scriptCmdPipeline += ' -UseCulture ' } if ( $Delimiter ) { $scriptCmdPipeline += " -Delimiter '$Delimiter' " } # Skip the first line (the one with the property names) $scriptCmdPipeline += ' | Foreach-Object {$start=$true}' $scriptCmdPipeline += '{if ($start) {$start=$false} else {$_}} ' # Add file output $scriptCmdPipeline += " | Out-File -FilePath '$Path'" $scriptCmdPipeline += " -Encoding '$Encoding' -Append " if ($Force) { $scriptCmdPipeline += ' -Force' } if ($NoClobber) { $scriptCmdPipeline += ' -NoClobber' } } } } $scriptCmd = {& $wrappedCmd @PSBoundParameters } if ( $AppendMode ) { # redefine command line $scriptCmd = $ExecutionContext.InvokeCommand.NewScriptBlock( $scriptCmdPipeline ) } else { # execute Export-CSV as we got it because # either -Append is missing or file does not exist $scriptCmd = $ExecutionContext.InvokeCommand.NewScriptBlock( [string]$scriptCmd ) } # standard pipeline initialization $steppablePipeline = $scriptCmd.GetSteppablePipeline( $myInvocation.CommandOrigin) $steppablePipeline.Begin($PSCmdlet) } catch { throw } } process { try { $steppablePipeline.Process($_) } catch { throw } } end { try { $steppablePipeline.End() } catch { throw } } } Write-Host "Removing old files from xxx" If (Test-Path $wfile){ Remove-Item $wfile } If (Test-Path $xfile){ Remove-Item $xfile } write-host "Getting _f details" get-childitem \\server\F$ -recurse |select directory, name, length|exportcsv $xfile -append -noclobber -notypeinformation write-host "Getting _H details" get-childitem \\server\H$ -recurse |select directory, name, length|exportcsv $wfile -append -noclobber -notypeinformation }

TIA

安迪

I have a script that works fine but I want to improve my powershell knowledge and would like to know if there is an easier way to do this.....

Part of my script connects to a sever and pulls bak a list of files and sizes on it and exports it to a csv.

I have found a function (Exportcsv) that allows me to append to the csv with earlier versions of powershell.

At the moment I use the invoke-command to remote to each server and the run the script in the script block but this means adding the function each time. So I have the function in my script but then have to repeat it for each server I connect to so it will run remotely

Is there any way to pass the local function to the remote server so I don't have to add to each invoke command.

Invoke-Command –ComputerName server –ScriptBlock { $wfile = "d:\folder\directorysize_H.csv" $xfile = "d:\folder\directorysize_F.csv" function ExportCSV { [CmdletBinding(DefaultParameterSetName='Delimiter', SupportsShouldProcess=$true, ConfirmImpact='Medium')] param( [Parameter(Mandatory=$true, ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] [System.Management.Automation.PSObject] ${InputObject}, [Parameter(Mandatory=$true, Position=0)] [Alias('PSPath')] [System.String] ${Path}, #region -Append [Switch] ${Append}, #endregion [Switch] ${Force}, [Switch] ${NoClobber}, [ValidateSet('Unicode','UTF7','UTF8','ASCII','UTF32', 'BigEndianUnicode','Default','OEM')] [System.String] ${Encoding}, [Parameter(ParameterSetName='Delimiter', Position=1)] [ValidateNotNull()] [System.Char] ${Delimiter}, [Parameter(ParameterSetName='UseCulture')] [Switch] ${UseCulture}, [Alias('NTI')] [Switch] ${NoTypeInformation}) begin { # This variable will tell us whether we actually need to append # to existing file $AppendMode = $false try { $outBuffer = $null if ($PSBoundParameters.TryGetValue('OutBuffer', [ref]$outBuffer)) { $PSBoundParameters['OutBuffer'] = 1 } $wrappedCmd = $ExecutionContext.InvokeCommand.GetCommand('Export-Csv', [System.Management.Automation.CommandTypes]::Cmdlet) #String variable to become the target command line $scriptCmdPipeline = '' # Add new parameter handling #region Process and remove the Append parameter if it is present if ($Append) { $PSBoundParameters.Remove('Append') | Out-Null if ($Path) { if (Test-Path $Path) { # Need to construct new command line $AppendMode = $true if ($Encoding.Length -eq 0) { # ASCII is default encoding for Export-CSV $Encoding = 'ASCII' } # For Append we use ConvertTo-CSV instead of Export $scriptCmdPipeline += 'ConvertTo-Csv -NoTypeInformation ' # Inherit other CSV convertion parameters if ( $UseCulture ) { $scriptCmdPipeline += ' -UseCulture ' } if ( $Delimiter ) { $scriptCmdPipeline += " -Delimiter '$Delimiter' " } # Skip the first line (the one with the property names) $scriptCmdPipeline += ' | Foreach-Object {$start=$true}' $scriptCmdPipeline += '{if ($start) {$start=$false} else {$_}} ' # Add file output $scriptCmdPipeline += " | Out-File -FilePath '$Path'" $scriptCmdPipeline += " -Encoding '$Encoding' -Append " if ($Force) { $scriptCmdPipeline += ' -Force' } if ($NoClobber) { $scriptCmdPipeline += ' -NoClobber' } } } } $scriptCmd = {& $wrappedCmd @PSBoundParameters } if ( $AppendMode ) { # redefine command line $scriptCmd = $ExecutionContext.InvokeCommand.NewScriptBlock( $scriptCmdPipeline ) } else { # execute Export-CSV as we got it because # either -Append is missing or file does not exist $scriptCmd = $ExecutionContext.InvokeCommand.NewScriptBlock( [string]$scriptCmd ) } # standard pipeline initialization $steppablePipeline = $scriptCmd.GetSteppablePipeline( $myInvocation.CommandOrigin) $steppablePipeline.Begin($PSCmdlet) } catch { throw } } process { try { $steppablePipeline.Process($_) } catch { throw } } end { try { $steppablePipeline.End() } catch { throw } } } Write-Host "Removing old files from xxx" If (Test-Path $wfile){ Remove-Item $wfile } If (Test-Path $xfile){ Remove-Item $xfile } write-host "Getting _f details" get-childitem \\server\F$ -recurse |select directory, name, length|exportcsv $xfile -append -noclobber -notypeinformation write-host "Getting _H details" get-childitem \\server\H$ -recurse |select directory, name, length|exportcsv $wfile -append -noclobber -notypeinformation }

TIA

Andy

最满意答案

没有一种直接的方法可以将功能传递给远程计算机，除了你已经在做的事情之外。 :-)但是，您可以将所有脚本放在一个文件（dirsize.ps1）中，并使用FilePath参数将其传递给Invoke-Command：

Invoke-Command –ComputerName server –FilePath .\dirsize.ps1

该文件将被复制到远程计算机并执行。

No there isn't a straightforward way to pass the function to the remote computers, well other than what you are already doing. :-) However you can put all that script in a file (dirsize.ps1) and pass that to Invoke-Command using the FilePath parameter:

Invoke-Command –ComputerName server –FilePath .\dirsize.ps1

The file will be copied to the remote computers and executed.