diff --git a/fileboy.go b/fileboy.go
index e7f3704..03fbd9a 100644
--- a/fileboy.go
+++ b/fileboy.go
@@ -18,8 +18,12 @@ import (
 const (
 	Version = 1
 
-	InstExecWhenStart = "exec-when-start"
-	InstShouldFinish  = "should-finish"
+	InstExecWhenStart   = "exec-when-start"
+	InstShouldFinish    = "should-finish"
+	InstIgnoreWarn      = "ignore-warn"
+	InstIgnoreInfo      = "ignore-info"
+	InstIgnoreStdout    = "ignore-stdout"
+	InstIgnoreExecError = "ignore-exec-error"
 )
 
 var (
diff --git a/taskman.go b/taskman.go
index 9727316..9c919c3 100644
--- a/taskman.go
+++ b/taskman.go
@@ -93,17 +93,26 @@ func (t *TaskMan) run(cf *changedFile) {
 		//cmd.SysProcAttr = &syscall.SysProcAttr{CreationFlags: syscall.CREATE_UNICODE_ENVIRONMENT}
 		t.cmd.Stdin = os.Stdin
 		t.cmd.Stdout = os.Stdout
+		if keyInInstruction(InstIgnoreStdout) {
+			t.cmd.Stdout = nil
+		}
 		t.cmd.Stderr = os.Stderr
 		t.cmd.Dir = projectFolder
 		t.cmd.Env = os.Environ()
 		err := t.cmd.Start()
 		if err != nil {
 			logError("run command", carr, "error. ", err)
+			if keyInInstruction(InstIgnoreExecError) {
+				continue
+			}
 			break
 		}
 		err = t.cmd.Wait()
 		if err != nil {
 			logWarn("command exec failed:", carr, err)
+			if keyInInstruction(InstIgnoreExecError) {
+				continue
+			}
 			break
 		}
 		if t.cmd.Process != nil {
diff --git a/util.go b/util.go
index c731ae5..d44c2eb 100644
--- a/util.go
+++ b/util.go
@@ -82,11 +82,17 @@ func inStrArray(s string, arr []string) bool {
 }
 
 func logInfo(v ...interface{}) {
+	if keyInInstruction(InstIgnoreInfo) {
+		return
+	}
 	v = append([]interface{}{"I:"}, v...)
 	log.Println(v...)
 }
 
 func logWarn(v ...interface{}) {
+	if keyInInstruction(InstIgnoreWarn) {
+		return
+	}
 	v = append([]interface{}{"W:"}, v...)
 	log.Println(v...)
 }