How to make UiPath wait until the powershell command is finished executing

[ppr (Peter Preuss)]

Cross reference:

How to confirm if retrieval of files is completed

I have some Excel files which I am retrieving from powershell, once I hit the command it takes some time to retrieve the files, like someday the number of files are 12 sometimes 15 sometimes 20, So how do I confirm whether this process of retrieval of files is completed. Any help is appreciated