cli bug fix

process.go

@@ -45,6 +45,7 @@ func Command(command string, args ...string) (*StarCmd, error) {
 	shell.stdoutBuf = bytes.NewBuffer(make([]byte, 0))
 	shell.stderrBuf = bytes.NewBuffer(make([]byte, 0))
 	shell.runningChan = make(chan int, 3)
+	shell.stopctx, shell.stopctxfunc = context.WithCancel(context.Background())
 	cmd := exec.Command(command, args...)
 	shell.CMD = cmd
 	shell.infile, err = shell.CMD.StdinPipe()

process_linux.go

@@ -162,10 +162,10 @@ func (starcli *StarCmd) Release() error {
 	if err := starcli.CMD.Start(); err != nil {
 		return err
 	}
-	starcli.cmd.SysProcAttr = &syscall.SysProcAttr{
+	starcli.CMD.SysProcAttr = &syscall.SysProcAttr{
 		Setsid: true,
 	}
-	starcli.cmd.Process.Release()
+	starcli.CMD.Process.Release()
 	return nil
 }