diff --git a/maker/golang/cmd/bench.go b/maker/golang/cmd/bench.go
index fb5c7bf..9bf763f 100644
--- a/maker/golang/cmd/bench.go
+++ b/maker/golang/cmd/bench.go
@@ -11,7 +11,8 @@ import (
 
 func Bench(sCmd string) {
 	var err error
-	var dbFile, srcFile, ipVersion, logLevel = "", "", "", ""
+	var dbFile, srcFile, ipVersion = "", "", ""
+	var help, logLevel = false, ""
 	var ignoreError = false
 	var fErr = IterateFlags(func(key string, val string) error {
 		switch key {
@@ -23,6 +24,8 @@ func Bench(sCmd string) {
 			ipVersion = val
 		case "log-level":
 			logLevel = val
+		case "help":
+			help = GetDefaultOnBool(val)
 		case "ignore-error":
 			switch val {
 			case "true", "1":
@@ -42,7 +45,7 @@ func Bench(sCmd string) {
 		return
 	}
 
-	if dbFile == "" || srcFile == "" {
+	if dbFile == "" || srcFile == "" || help {
 		fmt.Printf("%s %s [command options]\n", os.Args[0], sCmd)
 		fmt.Printf("options:\n")
 		fmt.Printf(" --db string            ip2region binary xdb file path\n")
@@ -50,6 +53,7 @@ func Bench(sCmd string) {
 		fmt.Printf(" --version string       IP version, options: ipv4/ipv6, specify this flag so you don't get confused \n")
 		fmt.Printf(" --log-level string     set the log level, options: debug/info/warn/error\n")
 		fmt.Printf(" --ignore-error bool    keep going if bench failed\n")
+		fmt.Printf(" --help bool            print this help menu\n")
 		return
 	}
 
diff --git a/maker/golang/cmd/edit.go b/maker/golang/cmd/edit.go
index f0ae218..44c9e2a 100644
--- a/maker/golang/cmd/edit.go
+++ b/maker/golang/cmd/edit.go
@@ -21,12 +21,15 @@ import (
 func Edit(sCmd string) {
 	var err error
 	var srcFile, ipVersion = "", ""
+	var help = false
 	var fErr = IterateFlags(func(key string, val string) error {
 		switch key {
 		case "src":
 			srcFile = val
 		case "version":
 			ipVersion = val
+		case "help":
+			help = GetDefaultOnBool(val)
 		default:
 			return fmt.Errorf("undefined option '%s=%s'", key, val)
 		}
@@ -37,11 +40,12 @@ func Edit(sCmd string) {
 		return
 	}
 
-	if srcFile == "" {
+	if srcFile == "" || help {
 		fmt.Printf("%s %s [command options]\n", os.Args[0], sCmd)
 		fmt.Printf("options:\n")
 		fmt.Printf(" --src string        source ip text file path\n")
 		fmt.Printf(" --version string    IP version, options: ipv4/ipv6, specify this flag so you don't get confused \n")
+		fmt.Printf(" --help bool         print this help menu\n")
 		return
 	}
 
@@ -72,7 +76,7 @@ func Edit(sCmd string) {
 	}
 
 	fmt.Printf("all segments loaded, length: %d, elapsed: %s\n", editor.SegLen(), time.Since(tStart))
-	var help = func() {
+	var printHelp = func() {
 		fmt.Printf("command list: \n")
 		fmt.Printf("  put [segment]        : put the specifield $segment\n")
 		fmt.Printf("  put_file [file]      : put all the segments from the specified $file\n")
@@ -82,7 +86,7 @@ func Edit(sCmd string) {
 		fmt.Printf("  help                 : print this help menu\n")
 	}
 
-	help()
+	printHelp()
 	var sTip = ""
 	var reader = bufio.NewReader(os.Stdin)
 	for {
@@ -101,7 +105,7 @@ func Edit(sCmd string) {
 
 		cmd := strings.TrimSpace(line)
 		if cmd == "help" {
-			help()
+			printHelp()
 		} else if cmd == "quit" {
 			if editor.NeedSave() {
 				fmt.Printf("there are changes that need to save, type 'quit!' to force quit\n")
@@ -158,7 +162,7 @@ func Edit(sCmd string) {
 			}
 			fmt.Printf("PutFile(%s): Ok, with %d deletes and %d additions\n", file, o, n)
 		} else if len(cmd) > 0 {
-			help()
+			printHelp()
 		}
 	}
 }
diff --git a/maker/golang/cmd/generate.go b/maker/golang/cmd/generate.go
index 373330b..ed7d049 100644
--- a/maker/golang/cmd/generate.go
+++ b/maker/golang/cmd/generate.go
@@ -19,7 +19,7 @@ func Generate(sCmd string) {
 	var err error
 	var srcFile, dstFile = "", ""
 	var ipVersion, fieldList, logLevel = "", "", "info"
-	var indexPolicy = xdb.VectorIndexPolicy
+	var help, indexPolicy = false, xdb.VectorIndexPolicy
 	var fErr = IterateFlags(func(key string, val string) error {
 		switch key {
 		case "src":
@@ -32,6 +32,8 @@ func Generate(sCmd string) {
 			logLevel = val
 		case "field-list":
 			fieldList = val
+		case "help":
+			help = GetDefaultOnBool(val)
 		case "index":
 			indexPolicy, err = xdb.IndexPolicyFromString(val)
 			if err != nil {
@@ -48,7 +50,7 @@ func Generate(sCmd string) {
 		return
 	}
 
-	if srcFile == "" || dstFile == "" {
+	if srcFile == "" || dstFile == "" || help {
 		fmt.Printf("%s %s [command options]\n", os.Args[0], sCmd)
 		fmt.Printf("options:\n")
 		fmt.Printf(" --src string           source ip text file path\n")
@@ -56,6 +58,7 @@ func Generate(sCmd string) {
 		fmt.Printf(" --version string       IP version, options: ipv4/ipv6, specify this flag so you don't get confused \n")
 		fmt.Printf(" --field-list string    field index list imploded with ',' eg: 0,1,2,3-6,7\n")
 		fmt.Printf(" --log-level string     set the log level, options: debug/info/warn/error\n")
+		fmt.Printf(" --help bool            print this help menu\n")
 		return
 	}
 
diff --git a/maker/golang/cmd/process.go b/maker/golang/cmd/process.go
index 5e21b56..06726bb 100644
--- a/maker/golang/cmd/process.go
+++ b/maker/golang/cmd/process.go
@@ -18,8 +18,8 @@ import (
 
 func Process(sCmd string) {
 	var err error
-	var srcFile, dstFile = "", ""
-	var fieldList, logLevel = "", ""
+	var srcFile, dstFile, fieldList = "", "", ""
+	var help, logLevel = false, ""
 	var clearBasedIndex = -1
 	var clearValueEqual, clearValueExcept = "", ""
 	var fErr = IterateFlags(func(key string, val string) error {
@@ -41,6 +41,8 @@ func Process(sCmd string) {
 			clearValueEqual = val
 		case "clear-value-except":
 			clearValueExcept = val
+		case "help":
+			help = GetDefaultOnBool(val)
 		case "log-level":
 			logLevel = val
 		default:
@@ -53,7 +55,7 @@ func Process(sCmd string) {
 		return
 	}
 
-	if srcFile == "" || dstFile == "" {
+	if srcFile == "" || dstFile == "" || help {
 		fmt.Printf("%s %s [command options]\n", os.Args[0], sCmd)
 		fmt.Printf("options:\n")
 		fmt.Printf(" --src string                 source ip text file path\n")
@@ -63,6 +65,7 @@ func Process(sCmd string) {
 		fmt.Printf(" --clear-value-equal string   clear value equal to the specified one\n")
 		fmt.Printf(" --clear-value-except string  clear value except the specified one\n")
 		fmt.Printf(" --log-level string           set the log level, options: debug/info/warn/error\n")
+		fmt.Printf(" --help bool                  print this help menu\n")
 		return
 	}
 
diff --git a/maker/golang/cmd/search.go b/maker/golang/cmd/search.go
index edb38b9..f30355a 100644
--- a/maker/golang/cmd/search.go
+++ b/maker/golang/cmd/search.go
@@ -20,11 +20,14 @@ import (
 
 func Search(sCmd string) {
 	var err error
-	var dbFile = ""
+	var dbFile, help = "", false
 	var fErr = IterateFlags(func(key string, val string) error {
-		if key == "db" {
+		switch key {
+		case "db":
 			dbFile = val
-		} else {
+		case "help":
+			help = GetDefaultOnBool(val)
+		default:
 			return fmt.Errorf("undefined option '%s=%s'", key, val)
 		}
 		return nil
@@ -34,10 +37,11 @@ func Search(sCmd string) {
 		return
 	}
 
-	if dbFile == "" {
+	if dbFile == "" || help {
 		fmt.Printf("%s %s [command options]\n", os.Args[0], sCmd)
 		fmt.Printf("options:\n")
 		fmt.Printf(" --db string         ip2region binary xdb file path\n")
+		fmt.Printf(" --help bool         print this help menu\n")
 		return
 	}
 
diff --git a/maker/golang/cmd/util.go b/maker/golang/cmd/util.go
index 847c81c..9b4d7eb 100644
--- a/maker/golang/cmd/util.go
+++ b/maker/golang/cmd/util.go
@@ -14,7 +14,7 @@ import (
 func IterateFlags(cb func(key string, val string) error) error {
 	for i := 2; i < len(os.Args); i++ {
 		r := os.Args[i]
-		if len(r) < 5 {
+		if len(r) < 3 {
 			continue
 		}
 
@@ -22,12 +22,16 @@ func IterateFlags(cb func(key string, val string) error) error {
 			continue
 		}
 
-		var sIdx = strings.Index(r, "=")
-		if sIdx < 0 {
-			return fmt.Errorf("missing = for args pair '%s'", r)
+		var k, v = "", "" // default empty value
+		if idx := strings.Index(r, "="); idx == -1 {
+			k = r[2:]
+		} else {
+			k = r[2:idx]
+			v = r[idx+1:]
 		}
 
-		if err := cb(r[2:sIdx], r[sIdx+1:]); err != nil {
+		// fmt.Printf("k=%s, v=%s\n", k, v)
+		if err := cb(k, v); err != nil {
 			return err
 		}
 	}
@@ -35,6 +39,15 @@ func IterateFlags(cb func(key string, val string) error) error {
 	return nil
 }
 
+// Parse help
+func GetDefaultOnBool(val string) bool {
+	if val == "false" || val == "0" || val == "off" {
+		return false
+	} else {
+		return true
+	}
+}
+
 func ApplyLogLevel(logLevel string) error {
 	// check and apply the log level
 	var levelLog = slog.LevelInfo