使用'command slinging'获取Groovy中另一个程序的进程ID [英] Getting the Process ID of another program in Groovy using 'command slinging'

问题描述

  import java.lang.management。* 
 
 final String name = ManagementFactory.getRuntimeMXBean（）。getName（）; 
 final Integer pid = Integer.parseInt（name [0..name.indexOf（@） -  1]）$ ​​b $ b  

我在代码中试过这个，但是得到了正在运行的程序的pid。我正在运行一个睡眠脚本（它所做的就是睡眠），名为sleep.sh，我希望获得该脚本的pid。有没有办法做到这一点？我自己并没有找到一个很好的方法。

我也使用了ps | grep，我可以看到进程ID有没有办法输出它呢？

 进程proc1 ='ps -ef'.execute（）
进程proc2 ='grep sleep.sh'。执行（）
进程proc3 ='grep -v grep'.execute（）
 all = proc1 | proc2 | proc3 
  

是否有办法修改all.text来获取进程ID或者是否存在另一个方式得到它？

解决方案

 对象getNumber（字符串searchProc）{
 //将方法调用中的进程添加到grep命令中
 searchString =grep+ searchProc 
 
 //初始化命令并将它们连接在一起
 Process proc1 ='ps -ef'.execute（）
进程proc2 = searchString.execute（）
进程proc3 ='grep -v grep'.execute（）
 all = proc1 | proc2 | proc3 
 
 //将输出命令的输出设置为字符串
输出= all.text 
 
 //将字符串修剪为进程ID 
 PID = output.substring（output.indexOf（ ' '），output.size（））。修剪（）
 PID = pid.substring（0，pid.indexOf（''））。修剪（ ）
 return pid 
} 
  

这是我的解决方案。 （我想让它成为一种方法，所以我把方法声明放在最上面）
我的问题一开始就是在进程名和pid之间有更多的空间。但后来我发现了修剪方法，并很好地工作。如果您对我的方法有疑问，请告诉我。我会定期检查。

import java.lang.management.*

final String name = ManagementFactory.getRuntimeMXBean().getName();
final Integer pid = Integer.parseInt(name[0..name.indexOf("@")-1])

I tried this in my code but that gets the pid of the running program. I am running a sleeping script (all it does is sleep) called sleep.sh and i want to get the pid of that. Is there a way to do that? I have not found a very good way myself.

I also used a ps | grep and i can see the process id is there a way to output it though?

Process proc1 = 'ps -ef'.execute()
Process proc2 = 'grep sleep.sh'.execute()
Process proc3 = 'grep -v grep'.execute()
all = proc1 | proc2 | proc3

is there a way i can modify the all.text to get the process id or is there another way to get it?

解决方案

Object getNumber(String searchProc) {
        //adds the process in the method call to the grep command
        searchString = "grep "+searchProc

        // initializes the command and pipes them together
        Process proc1 = 'ps -ef'.execute()
        Process proc2 = searchString.execute()
        Process proc3 = 'grep -v grep'.execute()
        all = proc1 | proc2 | proc3

        //sets the output to the piped commands to a string
        output = all.text

        //trims down the string to just the process ID
        pid = output.substring(output.indexOf(' '), output.size()).trim()
        pid = pid.substring(0, pid.indexOf(' ')).trim()
        return pid
}

This is my solution. (I wanted to make it a method so i put the method declaration at the very top) My problem at the beginning was that there was more spaces than one between the process name and the pid. but then i found the trim method and that worked nicely. If you have questions on my method let me know. I will check back periodically.

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