How can I handle remote errors with Invoke-Command - windows

Question

I have the following code:
Invoke-Command -ComputerName $remoteComputerName -Credentials $cred {& c:/program.exe}
How can I return the rc from program.exe as the Invoke-Command return code, particularly when it is non-zero.?

Answer 1

By default Invoke-Command will pass back whatever the result of the script was. If you are not sending back any other data you can always do something like this:
Invoke-Command -ComputerName $remoteComputerName -Credentials $cred {& c:/program.exe;$lastexitcode}
That should return the exit code of whatever application you were trying to run.

Answer 2

as an extension for what TheMadTechnician says, you can insert what ever happend in the remote computer to a powershell object, you can even wrap it with try{} catch{} or send back only $? (same as $LASTEXITCODE) and pass it back to the script:
$rc_oporation = Invoke-Command -ComputerName $remoteComputerName -Credentials $cred {& c:/program.exe; $?}
$rc_other_option = Invoke-Command -ComputerName $remoteComputerName -Credentials $cred { try{& c:/program.exe} catch{"there was a problem"} }
now "$rc_oporation" will hold your answers as 0 refer to success with no errors
hope that helps :)

Answer 3

before the above anwsers I got the following working (thanks to themadtechnician):
$s = New-PSSession -Name autobuild -ComputerName <ip address> -Credential $cred
Invoke-Command -Session $s -ScriptBlock {& 'C:\program.exe'}
$rc = Invoke-Command -Session $s -ScriptBlock {$lastexitcode}
if ($rc -ne 0)
{
write-output "run failed ..."
Remove-PSSession -Name autobuild
exit 1
}
else
{
write-output "run complete ..."
Remove-PSSession -Name autobuild
exit 0
}