如何通过Java程序在新的gnome终端中启动Shell脚本 [英] how to launch a shell script in a new gnome terminal, from a java program

问题描述

我正在尝试从Java程序运行shell脚本(例如myscript.sh).

I'm trying to run a shell script (say myscript.sh) from a java program.

当我从终端运行脚本时，就像这样:

when i run the script from terminal, like this :

./myscript.sh

它工作正常.

但是当我从Java程序调用它时，使用以下代码:

But when i call it from the java program, with the following code :

try
    {
        ProcessBuilder pb = new ProcessBuilder("/bin/bash","./myScript.sh",someParam);

        pb.environment().put("PATH", "OtherPath");

        Process p = pb.start(); 

        InputStreamReader isr = new InputStreamReader(p.getInputStream());
        BufferedReader br = new BufferedReader(isr);

        String line ;
        while((line = br.readLine()) != null)
           System.out.println(line);

        int exitVal = p.waitFor();
    }catch(Exception e)
    {  e.printStackTrace();  }
}

它没有相同的方式.几个shell命令(例如sed，awk和类似命令)被跳过，根本不提供任何输出.

It doesnt goes the same way. Several shell commands (like sed, awk and similar commands) get skipped and donot give any output at all.

问题:是否可以使用Java在新的终端中启动此脚本.

Question : Is there some way to launch this script in a new terminal using java.

PS:我发现"gnome-terminal"命令在shell中启动了一个新的终端，但是，我不知道如何在Java代码中使用相同的代码.

PS : i've found that "gnome-terminal" command launches a new terminal in shell, But, i'm unable to figure out, how to use the same in a java code.

我对使用Shell脚本非常陌生.请帮助

i'm quite new to using shell scripting. Please help

预先感谢

推荐答案

在Java中:

import java.lang.Runtime;                                                        

class CLI {                                                                      

    public static void main(String args[]) {                                     
        String command[] = {"/bin/sh", "-c", 
                            "gnome-terminal --execute ./myscript.sh"};
        Runtime rt = Runtime.getRuntime();                                       
        try {                                                                    
            rt.exec(command);                                                    
        } catch(Exception ex) {                                                  
            // handle ex                                                         
        }                                                                        
    }                                                                            

}

脚本的内容是:

#!/bin/bash    

echo 'hello!'    

bash

注意:

• 您将在后台线程或工作线程中执行此操作
• shell脚本中的最后一个命令是 bash ；否则执行完成并且终端关闭.
• shell脚本与调用Java类位于同一路径.

• You'll do this in a background thread or a worker
• The last command, in the shell script, is bash; otherwise execution completes and the terminal is closed.
• The shell script is located in the same path as the calling Java class.

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