[英]Invoke-Command script block not generating output
I am trying to use a script block in a remote powershell session. 我正在尝试在远程Powershell会话中使用脚本块。 This command is working and I get an output about the machine state: 此命令正在运行,我得到有关机器状态的输出:
$SecurePassword = $ParamPassword | ConvertTo-SecureString -AsPlainText -Force
$cred = New-Object System.Management.Automation.PSCredential `
-ArgumentList $UserName, $SecurePassword
$ParamDomain = 'mydomain'
$ParamHostname = "myhostname"
$fullhost = "$ParamDomain"+"\"+"$ParamHostname"
#Get-BrokerMachine No1
if ($ParamCommand -eq 'Get-BrokerMachine'){
$s = New-PSSession -computerName $desktopbroker -credential $cred
Invoke-Command -Session $s -ScriptBlock { param( $fullhost ) ;asnp citrix.* ; Get-BrokerMachine -machinename $fullhost } -Args $fullhost
}
My second iteration of this, also using a scriptblock, is failing. 我的第二次迭代(也使用脚本块)失败了。 The command Get-BrokerMachine
is not executed and there is no output. 不执行命令Get-BrokerMachine
并且没有输出。
#Get-BrokerMachine No2
if ($ParamCommand -eq 'Get-BrokerMachine'){
$ScriptBlock = {
asnp citrix.* ; Get-BrokerMachine -machinename $fullhost
};
$s = New-PSSession -computerName $desktopbroker -credential $cred
Invoke-Command -Session $s -ScriptBlock $ScriptBlock
}
Can someone explain what is wrong with the second script? 有人可以解释第二个脚本有什么问题吗?
The one important thing that is missing in your second script is that you are not passing $fullhost
as an argument. 第二个脚本中缺少的一件事是您没有传递$fullhost
作为参数。 When the scriptblock gets called on the remote system $fullhost
would be $null
. 当在远程系统上调用$fullhost
, $fullhost
将为$null
。
Rough guess would be you need to do something like this: 粗略的猜测是您需要执行以下操作:
#Get-BrokerMachine No2
if ($ParamCommand -eq 'Get-BrokerMachine'){
$ScriptBlock = {
param($host)
asnp citrix.* ; Get-BrokerMachine -machinename $host
};
$s = New-PSSession -computerName $desktopbroker -credential $cred
Invoke-Command -Session $s -ScriptBlock $ScriptBlock -ArgumentList $fullhost
}
I changed the name of the variable inside the scriptblock to $host
to remove the potential perceived ambiguity of the scopes. 我将脚本块中的变量名称更改为$host
以消除潜在的范围模糊性。
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