Groovy进程不能使用linux shell（grep和awk和ps） [英] Groovy process not working with linux shell (grep and awk and ps)

问题描述

 进程proc1 ='sh -c ps -ef'.execute（）; 
 Process proc2 ='sh -c grep sleep.sh'.execute（）; 
 Process proc3 ='sh -c grep -v grep'.execute（）; 
 Process proc4 ='sh -c awk sleep.sh'.execute（）; 
 
全部处理= proc1 | proc2 | proc3 | proc4; 
 
 //我也试过了，这个没有效果
 
 // println（['sh'，'-c'，'ps -ef | grep'sleep.sh | grep -vgrep| awksleep.groovy'] .execute（）。text）
 
 //也尝试不使用awk 
 
 println all。文本; 
  

好的，我想要做的是ps我制作的shell脚本（sleep.sh）[它只是睡了一段时间]。不太确定该怎么做。这是我最好的猜测^^

结果：

  -sh -3.2 $ ./callGroovy.sh testSleep.groovy 
 
 $ b -sh-3.2 $ 
  

不打印任何东西，并且不给我任何东西（callGroovy是我用来调用我的groovy脚本的shell脚本）
如果我运行管道命令，它们仍然工作，除了awk
我认为我在做awk错误
heres其余的管道。

$ p $ -sh-3.2 $ ps -ef | grepsleep.sh| grep -vgrep
wasadmin ***** ***** 0 **：** pts / 1 **：**：** / bin / bash ./sleep.sh


（其中所有*都是数字）

我试着用grep和ps脚本，它也不给我这个输出。有什么建议么？ ..PS我也尝试过和没有groovy脚本中的引号。没有想到这会有所作为，但值得一试

$ c>选项只需要一个参数。试试这个命令行，你会发现它也失败了：

  sh -c ps -ef | sh -c grep sleep.sh | sh -c grep -v grep | sh -c awk sleep.sh 
  

它需要引号才能正常工作：

  sh -cps -ef| sh -cgrep sleep.sh| sh -cgrep -v grep| sh -cawk sleep.sh
  

您可以通过从列表字符串而不是字符串： proc1 = ['sh'，'-c'，'ps -ef'] 。在这种情况下，你需要在groovy中进行过滤，所以简单的解决方案就是不通过shell调用这些命令。试试这个：

 进程proc1 ='ps -ef'.execute（）
进程proc2 ='grep sleep。 sh'.execute（）
处理proc3 ='grep -v grep'.execute（）
处理proc4 ='awk sleep.sh'.execute（）
 
处理所有= proc1 | proc2 | proc3 | proc4 
 
 println all.text 
  

最后，如果不起作用正确地说，使用

  println all.err.text 
 阅读stderr流会很有帮助$ c> 




Process proc1 ='sh -c ps -ef'.execute();
Process proc2 ='sh -c grep sleep.sh '.execute();
Process proc3 ='sh -c grep -v grep '.execute();
Process proc4 ='sh -c awk sleep.sh '.execute();

Process all = proc1 | proc2 | proc3 | proc4;

// I tried this too and this didnt work

//println( [ 'sh', '-c', 'ps -ef | grep "sleep.sh" | grep -v "grep" |     awk "sleep.groovy" ' ].execute().text )

//also tried without the awk

println all.text;

Okay so what I am trying to do is ps the shell script i made (sleep.sh) [all it does it sleep for a period of time]. Not quite sure how to do that. This was my best guess^^

result:

-sh-3.2$ ./callGroovy.sh testSleep.groovy


-sh-3.2$

doesnt print anything out and doesnt give me anything (callGroovy is a shell script i use to call my groovy script) If i run the piped commands they work still except the awk I think i am doing the awk wrong heres the rest piped

-sh-3.2$ ps -ef | grep "sleep.sh" | grep -v "grep"
wasadmin ***** *****  0 **:** pts/1    **:**:** /bin/bash ./sleep.sh  

(where all the * are numbers)

when i try the script with just the grep and ps it doesnt give me this output either. any suggestions? ..PS Also I tried with and without the quotes in the groovy script. Didnt think it would make a difference but worth a shot

解决方案

The shell -c option expects one parameter only. Try this from the command line, and you'll see it fails as well:

sh -c ps -ef | sh -c grep sleep.sh | sh -c grep -v grep | sh -c awk sleep.sh

It needs quotes to work properly:

sh -c "ps -ef" | sh -c "grep sleep.sh" | sh -c "grep -v grep" | sh -c "awk sleep.sh"

You can quote the commands properly by starting with a list of strings instead of a string: proc1 = ['sh', '-c', 'ps -ef']. In this case you're doing the filtering in groovy, so the simple solution is to simply not invoke the commands through the shell. Try this:

Process proc1 ='ps -ef'.execute()
Process proc2 ='grep sleep.sh '.execute()
Process proc3 ='grep -v grep '.execute()
Process proc4 ='awk sleep.sh '.execute()

Process all = proc1 | proc2 | proc3 | proc4

println all.text

Finally, if things don't work properly, it can be helpful to read the stderr stream with

println all.err.text

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