Powershell: Find the currently logged on user and copy a unique file from a shared drive - windows

Question

Title says most of it. I have generated unique files for users who will be running their scripts remotely. The script is supposed to find the name of the currently logged on user and copy that unique file to C:\Users\Public. Currently however I am running into an issue where the system seems to default to my username. I have tried multiple methods sourced from here and stack overflow and cannot seem to get a good result, as everyone ends up with my unique file. I have tried the following:
$env:username
$env:userprofile
$currentuser=[System.Security.Principal.WindowsIdentity]::GetCurrent().Name
The script looks as such:
$currentuser=[System.Security.Principal.WindowsIdentity]::GetCurrent().Name
if ($currentuser = "Domain/username1") {
copy-item -Path "shared network location\username1file" -Destination "C:\Users\Public"
}
elseif ($currentuser = "Domain\username2") {
copy-item -Path "shared network location\username2file" -Destination "C:\Users\Public"
}
elseif ($currentuser = "domain\username3") {
copy-item -Path "shared network location\username3file" -Destination "C:\Users\Public"
}
Can anyone provide me any advice on how to fix this?

Answer 1

To get the currently logged on user and not the user currently running the script, you can use WMI Win32_ComputerSystem.
Also, I would recommend using switch instead of multiple elseif:
$currentuser = (Get-WmiObject -Class Win32_ComputerSystem).UserName
$file = switch ($currentuser) {
'Domain\username1' { "shared network location\username1file"; break }
'Domain\username2' { "shared network location\username2file"; break }
'Domain\username3' { "shared network location\username3file"; break }
default { $null }
}
if ($file) {
Copy-Item -Path $file -Destination "C:\Users\Public"
}
else {
Write-Host "No file to copy defined for user '$currentuser'"
}