我知道这个主题有很多主题，但我找不到解决问题的方法，所以我真的可以使用指导(也许我错过了什么(。
我有一个自定义功能可以将东西写入日志文件：
function Write-Log
{
[CmdletBinding()]
Param
(
[Parameter(Mandatory=$true,
ValueFromPipelineByPropertyName=$true)]
[ValidateNotNullOrEmpty()]
[Alias("LogContent")]
[string]$Message,
[Parameter(Mandatory=$false)]
[Alias('LogPath')]
[string]$Path='C:Scriptsdefault.log',
[Parameter(Mandatory=$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' {
# If you want to write INFO messages to console, uncomment line below.
#Write-Verbose $Message
$LevelText = 'INFO:'
}
}
# Write log entry to $Path
"$FormattedDate (PID: $PID) $LevelText $Message" | Out-File -FilePath $Path -Append
}
End
{
}
}
我想做的是用invoke-command远程运行一些命令，我想(在本地(记录在远程计算机上完成的一些活动。远程调用的命令示例如下：
$DriveLetter = Invoke-Command -ComputerName computer2 -ScriptBlock {
try {
Write-Log "Trying to mount the profile on the remote server..." -Level Info -Path $log_path
$path_to_mount = $args[0] + "" + $args[1]
$DriveLetter = ((Mount-VHD -Path $path_to_mount -ErrorAction Stop -PassThru| Get-Disk | Get-Partition | Get-Volume).DriveLetter)+":"
Write-Log "Profile mounted to $DriveLetter" -Level Info -Path $log_path
return $DriveLetter
}
catch [Microsoft.HyperV.PowerShell.VirtualizationException] {
Write-Host "Profile is mounted." -ForegroundColor Red
Write-Log "Profile is mounted." -Level Error -Path $log_path
} -ConfigurationName ConnectUPD -ArgumentList $sourceDir,$upd_file -ErrorAction Stop
上面的例子只是简单地装载(在计算机2上(一个文件(来自计算机3(并返回其驱动器号(计算机1是脚本运行的地方(。如果我注释掉write-log行，代码就会完美地运行。
我试着应用了很多在线提供的解决方案(比如这个，效果很好，但前提是脚本块只包含函数。如果脚本块有更多的东西，比如我的情况，它就不起作用了(。我得到的最远的方法是让远程计算机将操作记录到C驱动器上的一个新的远程文件，而不是脚本运行的本地文件。
在这个问题上，我真的需要一些帮助和指导。它踢我屁股：(
提前谢谢。
要做你想做的事情，我会将日志函数从本地范围点源到远程，做一些事情，在远程机器上生成日志文件，然后返回到现有会话，并在本地下拉文件。
这是我刚刚想出的一个特别的例子(SO的语法高亮显示不喜欢块注释，所以请原谅缺乏(
# Function creation, screw foo, I use banana
function banana()
{
# to let you know that the function is working
Write-Host "From function"
# creates a file to copy
New-Item -Path "C:tempremotefunctest.txt" -Force
}
# This creates an object that is a representation of the function in string form
# this is what we'll dot source from within the invoke's scope
$myFunction = "function banana {${function:banana}}"
# list of your machines
# for simplicity I just built a string array, you can use whatever method you deem best
[string[]]$listOfComputerNames = @("machine1","machine2")
# Empty session array instantiation
[System.Management.Automation.Runspaces.PSSession[]]$sessions = @()
# iterate through machine names and creates sessions, adding them to the sessions array
foreach($name in $listOfComputerNames)
{
$sessions += New-PSSession -ComputerName $name # add -Credential if needed
}
# Will invoke your commands against the persistent sessions,
# instantiating the function, and running said function,
# which creates the file for you
Invoke-Command -Session $sessions -ScriptBlock {
# This will create a new ScriptBlock object,
# then use dot sourcing to run that scriptblock inside the current scope.
# It's the exact same functionality as copy-pasting the entire function
# into the invoke command
. $([scriptblock]::Create($using:myFunction))
# this is calling the function
banana
Write-Host "From invoke"
}
# This will iterate through the $sessions array,
# copy the designated file via Copy-Item's
# fancy schmancy -FromSession parameter,
# then place that file in a folder that is
# named after the name of the remote machine.
foreach($session in $sessions)
{
# With the -FromSession ParameterSet,
# -Path is the file path on the REMOTE machine to copy the file FROM
# -Destination is the file path on the LOCAL machine to copy the file TO
Copy-Item -FromSession $session -Path "C:tempremotefunctest.txt" -Destination "C:tempsession-copy-test$($session.ComputerName)"
}
# Clean up the sessions
Remove-PSSession $sessions