diff --git a/templates/dynamic/ext/sh b/templates/dynamic/ext/sh
index 0ce4581..766dc17 100755
--- a/templates/dynamic/ext/sh
+++ b/templates/dynamic/ext/sh
@@ -41,13 +41,18 @@ function Func2 {
     Warn Func2 ...
 }
 
-function Main {
+function CheckLock {
+    Warn Checking lock ...
     [ -e "\$PID_FILE" ] \\
         && [ -d "/proc/\$(cat \$PID_FILE)" ] \\
         && cat /proc/\$(cat \$PID_FILE)/cmdline \\
         && echo \\
         && Error Pid file \$PID_FILE already exists, quit!
     echo \$\$ > \$PID_FILE
+}
+
+function Main {
+    CheckLock
     trap Quit EXIT
     Warn Main ...
     Func1