diff --git a/src/tool/ftest/main.go b/src/tool/ftest/main.go
index a8f0b3a..a406c32 100644
--- a/src/tool/ftest/main.go
+++ b/src/tool/ftest/main.go
@@ -6,6 +6,7 @@ import (
 	"bufio"
 	"fmt"
 	"github.com/surdeus/gomtool/src/mtool"
+	"path/filepath"
 )
 
 var (
@@ -67,6 +68,7 @@ func IsReadable(p string) bool {
 }
 
 func checkFile(p string) bool {
+	p = filepath.FromSlash(p)
 	for _, v := range flagList {
 		if !flagMap[v](p){
 			return false
diff --git a/src/tool/ln/main.go b/src/tool/ln/main.go
index 339e0dd..9f542c7 100644
--- a/src/tool/ln/main.go
+++ b/src/tool/ln/main.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"os"
 	"github.com/surdeus/gomtool/src/mtool"
+	"path/filepath"
 )
 
 func Run(flagSet *mtool.Flags) {
@@ -20,6 +21,9 @@ func Run(flagSet *mtool.Flags) {
 
 	src := args[0]
 	dst := args[1]
+	
+	src = filepath.FromSlash(src)
+	dst = filepath.FromSlash(dst)
 
 	var err error
 	if lflag {
diff --git a/src/tool/useprog/main.go b/src/tool/useprog/main.go
index 0d8469b..5c3c648 100644
--- a/src/tool/useprog/main.go
+++ b/src/tool/useprog/main.go
@@ -1,12 +1,16 @@
 package useprog
 
 import (
+	"os"
 	"os/exec"
 	"fmt"
 	"github.com/surdeus/gomtool/src/mtool"
+	"path/filepath"
 )
 
 func Run(flagSet *mtool.Flags) {
+	var nVar bool
+	flagSet.BoolVar(&nVar, "n", false, "print only name, not path")
 	flagSet.Parse()
 	args := flagSet.Args()
 
@@ -15,11 +19,18 @@ func Run(flagSet *mtool.Flags) {
 	}
 
 	for _, v := range args {
-		_, err := exec.LookPath(v)
+		pth, err := exec.LookPath(v)
 		if err != nil {
 			continue
 		}
-		fmt.Printf("%s", v)
-		break
+		var toPrint string
+		if nVar {
+			toPrint = v
+		} else {
+			toPrint = filepath.ToSlash(pth)
+		}
+		fmt.Printf("%s", toPrint)
+		os.Exit(0)
 	}
+	os.Exit(1)
 }