由于项目需要，需要知道当前系统的Linux内核版本。Android系统是基于Linux的，各个Android版本对应的Linux版本不尽相同。在应用中需要获取Linux内核的版本信息，通过下边代码来实现。

/***
	 * 获取Android Linux内核版本信息
	 */
	public void getLinuxKernalInfo() {
		Process process = null;
		String mLinuxKernal = null;
		try {
			process = Runtime.getRuntime().exec("cat /proc/version");
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		// get the output line
		InputStream outs = process.getInputStream();
		InputStreamReader isrout = new InputStreamReader(outs);
		BufferedReader brout = new BufferedReader(isrout, 8 * 1024);

		String result = "";
		String line;
		// get the whole standard output string
		try {
			while ((line = brout.readLine()) != null) {
				result += line;
				// result += "\n";
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		if (result != "") {
			String Keyword = "version ";
			int index = result.indexOf(Keyword);
			Log.v(TAG, "----"+result);
			line = result.substring(index + Keyword.length());
			index = line.indexOf(" ");
			// tv01.setText(line.substring(0,index));
			mLinuxKernal = line.substring(0, index);

			Log.d(TAG, "----Linux Kernal is : " + mLinuxKernal);
		}
	}

经过检测，我的Linux内核版本是3.4.0-2686884