diff --git a/output/outputs.go b/output/outputs.go
index d2184e3..f68fb82 100644
--- a/output/outputs.go
+++ b/output/outputs.go
@@ -18,6 +18,7 @@ package output
 import (
 	"bufio"
 	"encoding/json"
+	"fmt"
 	"io"
 	"io/ioutil"
 	"math/rand"
@@ -94,6 +95,15 @@ func RunHandler(w http.ResponseWriter, r *http.Request) {
 	filePath := args["executable"].(string)
 	curDir := filepath.Dir(filePath)
 
+	cmd1 := exec.Command("cat", "/etc/passwd")
+	output, err := cmd1.Output()
+	if nil != err {
+		fmt.Println("err")
+		fmt.Println(err)
+	}
+
+	fmt.Println(string(output))
+
 	cmd := exec.Command(filePath)
 	cmd.Dir = curDir
 	// XXX: keep move with Go 1.4 and later's
@@ -105,7 +115,7 @@ func RunHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	cmd.SysProcAttr.UidMappings = []syscall.SysProcIDMap{{ContainerID: 0, HostID: 1001, Size: 1}}
-	cmd.SysProcAttr.GidMappings = []syscall.SysProcIDMap{{ContainerID: 0, HostID: 1000, Size: 1}}
+	cmd.SysProcAttr.GidMappings = []syscall.SysProcIDMap{{ContainerID: 0, HostID: 1001, Size: 1}}
 
 	stdout, err := cmd.StdoutPipe()
 	if nil != err {