Parameter interpretation when running jobs

by

Variables defined in the global scope of your script are not available inside the scriptblock unless you use the using qualifier:

$code = {
  Get-WmiObject -Class "Win32_ComputerSystem" -Namespace "root\cimv2" -ComputerName $using:h
}

or pass them in as arguments, like this:

$code = {
  Param($hostname)
  Get-WmiObject -Class "Win32_ComputerSystem" -Namespace "root\cimv2" -ComputerName $hostname
}
$jobstate = Wait-Job -Job ($job = $(Start-Job -ScriptBlock $code -ArgumentList $h)) -Timeout $timeout

or like this:

$code = {
  Get-WmiObject -Class "Win32_ComputerSystem" -Namespace "root\cimv2" -ComputerName $args[0]
}
$jobstate = Wait-Job -Job ($job = $(Start-Job -ScriptBlock $code -ArgumentList $h)) -Timeout $timeout

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