执行Linux命令在Java中 [英] Executing Linux Command in Java

问题描述

我想在Java中以杀死这是通过Java执行bash脚本的催生过程中执行以下命令：

I'm trying to execute the following Command in Java in order to kill the spawned process of bash script which is executed through java :

kill $(pgrep -P $(pgrep -P 5537)) 

我使用Apache Exec的命令行构建命令，但它是在这里使用的ProcessBuilder没有什么不同。因此，这里是我迄今为止：

I'm using apache Commons Exec Commandline to build the Command but it's no different to using ProcessBuilder here. So here is what I have so far:

CommandLine cmdLine = new CommandLine("bash");
cmdLine.addArgument("-c");
cmdLine.addArgument("kill $(pgrep -P $(pgrep -P "+pid+"))");

我得到的错误

bash: $'kill 7940\n7941\n7942\n7943': Command not found.

通常我现在会尝试获取新行该命令，但它也不起作用杀死只是一个单一的过程，因为当时我得到的错误：

Normally I would now try to get the newlines out of the Command but it also doesn't work to kill just a single process because then I get the error :

bash: kill 7980: Command not found.

一，一方面我需要使用bash中使用变量，另一方面，我不能使用它，因为杀不能用它来执行...

One the one hand I need to use bash to use the variables and on the other hand I can't use it because kill can't be executed with it...

推荐答案

首先杀-9 pidnumber

为什么你需要的bash的变量？ java的时候给你字符串存储变量？

Why would you need the bash variables? when java gives you strings to store variables?

第三，为什么不尝试 System.Runtime.getRuntime（）。EXEC（）？

Thirdly why not try System.Runtime.getRuntime().exec() ?

另外你有权杀任务？试图须藤杀死-9 PID ？

Also do you have permissions to kill the task? tried sudo kill -9 pid?

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