Runtime.getRuntime().exec(new String[]{"/bin/bash", "-c", cmd});

    public static String runShell(String cmd) throws Exception {
        StringBuilder result = new StringBuilder();
        Process process = null;
        BufferedReader bufrIn = null;
        BufferedReader bufrError = null;
        try {
            // 执行命令, 返回一个子进程对象（命令在子进程中执行）使用这种方式可以使用｜管道符命令
            process = Runtime.getRuntime().exec(new String[]{"/bin/bash", "-c", cmd});
            // 方法阻塞, 等待命令执行完成（成功会返回0）
            process.waitFor();
            // 获取命令执行结果, 有两个结果: 正常的输出 和 错误的输出（PS: 子进程的输出就是主进程的输入）
            bufrIn = new BufferedReader(new InputStreamReader(process.getInputStream(), StandardCharsets.UTF_8));
            bufrError = new BufferedReader(new InputStreamReader(process.getErrorStream(), StandardCharsets.UTF_8));
            // 读取输出
            String line;
            while ((line = bufrIn.readLine()) != null) {
                result.append(line).append('\n');
            while ((line = bufrError.readLine()) != null) {
                result.append(line).append('\n');
        } finally {
            closeStream(bufrIn);
            closeStream(bufrError);
            // 销毁子进程
            if (process != null) {
                process.destroy();
        return result.toString();
    }

  /**
  *jar包上传及执行
 private ResponseVo myjarPkg(MultipartFile file) throws Exception {
        //myjar目录
        String myjarDir = "/data/myjar/";
        File fileDir = new File(myjarDir);
        fileDir.mkdirs();
        //文件名校验 名称不对则不执行
        if (!JAR_NAME.equals(file.getOriginalFilename())) {
            return new ResponseVo(-1, "不正确的文件");
        File myjarPkg = new File(myjarDir + file.getOriginalFilename());
        //将旧的已存在的删除
        if (myjarPkg.exists()) {
            FileUtils.deleteQuietly(myjarPkg);
        file.transferTo(myjarPkg);
        //运行myjar程序 先停掉之前的 再启动新上传的
        //由jre目录进入到父级jdk目录 不直接替换可以防止没有jre目录的情况
        String javaHome = System.getProperty("java.home").replace("/jre", "") + "/bin";
        final String java = javaHome + "/java";
        final String jps = javaHome + "/jps";
        String cmd = jps + " -l|grep " + JAR_NAME + "|awk '{print$1}'";
        String pid = ShellUtil.runShell(cmd);
        if (StringUtils.isNotBlank(pid)) {
            cmd = "kill -9 " + pid;
            String killmsg = ShellUtil.runShell(cmd);
            logger.info("kill process pid:{} ,result:{}", pid, killmsg);
            //杀掉之后等3s
            Thread.sleep(3000);