diff --git a/README.md b/README.md
index d20b90e..9d01c27 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
 # WslKD
 
-Windows Subsystem for Linux Keep Daemon
\ No newline at end of file
+Windows Subsystem for Linux Keep Daemon
+
+# 简要说明
+
+wsl在没有使用的情况下守护进程会被关闭，本工具在指定的wsl发行版打开一个shell为wsl守护进程保活。
diff --git a/wslkd.go b/wslkd.go
index 7905807..8fa5a23 100644
--- a/wslkd.go
+++ b/wslkd.go
@@ -1,5 +1,38 @@
 package main
 
-func main() {
+import (
+	"flag"
+	"github.com/xiaoqidun/gowsl"
+	"log"
+	"strings"
+	"sync"
+)
 
+func main() {
+	var d string
+	flag.StringVar(&d, "d", "Debian", "distribution")
+	flag.Parsed()
+	waitGroup := &sync.WaitGroup{}
+	distroList := strings.Split(d, ",")
+	for i := 0; i < len(distroList); i++ {
+		distro := strings.TrimSpace(distroList[i])
+		if distro == "" {
+			continue
+		}
+		waitGroup.Add(1)
+		go exec(waitGroup, distro)
+	}
+	waitGroup.Wait()
+}
+
+func exec(done *sync.WaitGroup, distro string) {
+	defer done.Done()
+	if !gowsl.Registered(distro) {
+		log.Printf("%v does not exist\n", distro)
+		return
+	}
+	cmd := gowsl.Command(distro, "/bin/bash")
+	if err := cmd.Run(); err != nil {
+		log.Printf("%v cmd run err: %v", distro, err)
+	}
 }