不能够运行grep命令 [英] Not able to run grep command

问题描述

我试图运行下面的命令，

I was trying to run the following instruction,

 Process p = Runtime.getRuntime().exec("/system/bin/lsof|grep mediaserver");

在安卓（JAVA），但我得到的错误。如果我运行下面的指令，

In android(java) but I am getting error. if I run following instruction,

 Process p = Runtime.getRuntime().exec("/system/bin/lsof ");

该文件是成功saved.Can谁能告诉什么是错误？其实我想列出，并检查是否媒体服务器服务正在运行与否。

the file is successfully saved.Can anyone tell what is the error? Actually I want to list and check if media server service is being running or not.

推荐答案

grep工具可能无法安装在设备上。

The grep utility may not be installed on your device.

您可以通过在控制台尝试以下检查：

You can check it by trying the following in a console:

> adb shell
$ grep
grep: not found

最后一行表示该命令不可用。

The last line indicates that this command is not available.

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