I'm curious if it's possible to set a variable in a remote PowerShell session using Invoke-Command, and then access that variable after the session has ended. I've found tons of resources on passing variables from local to remote sessions, but I'm wondering about the reverse. Is it feasible to retain that variable's value for later use? It feels like such a straightforward question, yet I can't seem to find a clear answer.
4 Answers
To get your desired variable back, always remember to output the results you need. For example, you could run something like `result = Invoke-Command -ComputerName server001 -ScriptBlock { Get-Service | Where-Object { $_.Name -like '*sql*' } }`. This way, you'd store the results of the service you want in a variable locally.
You're right in thinking the script would need some adjustments. Think of the sessions as temporary. Whatever you set there won't stick around — you need to pass the data back explicitly. Consider using formats like JSON or XML for transferring data cleanly. This helps ensure you have access to the data you need after the session closes.
Just to clarify, once a remote session ends, you won’t have access to its state or any variables unless you stored them somewhere. It's like finishing a project and not having a copy of your notes — once it's over, it’s over. Make sure you retrieve everything you need during that session!
You can't directly reference a variable from a remote session after it ends. The whole idea of a remote session is that once it's over, everything inside it is gone. So, if you want to use data from a remote script block later, make sure to output that data before the session ends, like with `Invoke-Command` returning results into a variable on your local machine.
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