java如何運行linux命令

 

• javac TestRunTime.java
• java TestRunTime hostname // 執行“hostname”Linux命令
• 即可看到輸出

 

 

 

public class TestRunTime {

    public static void main(String[] args) throws IOException, InterruptedException {

        String cmd = "";

        if(args == null || args.length == 0){

            System.out.println("請輸入命令列參數");

        }else{

            for(int i=0;i<args.length; i++){

                cmd += args[i] + " ";

            }

        }

        try {

            Process process = Runtime.getRuntime().exec(cmd);

            InputStreamReader ir = new InputStreamReader(process.getInputStream());

            LineNumberReader input = new LineNumberReader(ir);

            String line;

            while ((line = input.readLine()) != null) {

                System.out.println(line);

            }

        } catch (java.io.IOException e) {

            System.err.println("IOException " + e.getMessage());

        }

    }

}