java执行linux命令

import java.io.*;
public class T{
        public static void main(String[] args) {

// String cmd1 = "sudo nmcli connection delete ‘"+args[0]+"‘";
// String cmd2 = "sudo nmcli connection delete "+args[0]+"";


String[] cmd = {"sh","-c","sudo nmcli con delete ‘"+args[0]+"‘"};
System.out.println(cmd);
              try {
                //      logger.info("启用失败或删除wifi后删除连接信息:"+cmd);
                          Process p =  Runtime.getRuntime().exec(cmd);
        BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
                    String line = null;
                 //   StringBuilder result = new StringBuilder();
                    while ((line = br.readLine()) != null) {
                        System.out.println(line);
                        }
                } catch (Exception e) {
                        e.printStackTrace();

                }
        }
}