The main function Check-And-Shutdown-WSL does the following: Checks all window titles for "WSL" or "Linux" using the Get-WindowTitles function. If no WSL/Linux windows are found, it checks for running WSL processes. If WSL processes are found but no windows are open, it runs wsl --shutdown. If no WSL windows or processes are found, it reports th…

chk_wsl.ps1

function chk_wsl {
    Add-Type @"
    using System;
    using System.Runtime.InteropServices;
    
    public class User32 {
        [DllImport("user32.dll")]
        public static extern IntPtr GetForegroundWindow();
        
        [DllImport("user32.dll")]
        public static extern int GetWindowText(IntPtr hWnd, System.Text.StringBuilder text, int count);
    }
"@

    function Get-WindowTitles {
        $titles = @()
        $windows = [System.Diagnostics.Process]::GetProcesses() | Where-Object {$_.MainWindowTitle -ne ""}
        foreach ($window in $windows) {
            $hWnd = $window.MainWindowHandle
            $title = New-Object System.Text.StringBuilder 256
            [User32]::GetWindowText($hWnd, $title, 256) | Out-Null
            $titles += $title.ToString()
        }
        return $titles
    }

    $wslTitles = Get-WindowTitles | Where-Object { $_ -match "WSL|Linux" }

    if ($wslTitles.Count -eq 0) {
        $wslProcesses = Get-Process | Where-Object { $_.Name -match "wsl|linux" }
        
        if ($wslProcesses.Count -gt 0) {
            Write-Host "No WSL windows found, but WSL processes are running. Shutting down WSL..."
            wsl --shutdown
            Write-Host "WSL has been shut down."
        } else {
            Write-Host "No WSL windows or processes found. Nothing to shut down."
        }
    } else {
        Write-Host "WSL or Linux windows are currently open. Not shutting down."
    }
}

# Call the function
Check-And-Shutdown-WSL