Updates all WSL distributions (assuming all have apt)

wsl-update.ps1

$wslDistros = wsl --list --quiet `
    | Where-Object { $_.Length -gt 1 } ` # Remove empty lines in output
    | ForEach-Object { $_ -replace '\x00', '' } # Remove weird nulls after every character in WSL output

foreach ($distro in $wslDistros) {
    Write-Host "Updating $distro" -ForegroundColor Magenta
    
    wsl --distribution "$distro" --user root -- sh -c "apt update && apt upgrade -y && apt autoremove -y && apt autoclean"
    if ($LASTEXITCODE -ne 0) {
        Write-Host "$distro updated failed." -ForegroundColor Red
    } else {
        Write-Host "$distro updated successfully." -ForegroundColor Green    
    }   
}