java调用shell命令并获取执行结果的示例

package ark; import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.List; public class ReadCmdLine {	public static void main(String args[]) {		Process process = null;		List<String> processList = new ArrayList<String>();		try {			process = Runtime.getRuntime().exec("ps -aux");			BufferedReader input = new BufferedReader(new InputStreamReader(process.getInputStream()));			String line = "";			while ((line = input.readLine()) != null) {				processList.add(line);			}			input.close();		} catch (IOException e) {			e.printStackTrace();		} 		for (String line : processList) {			System.out.println(line);		}	}}

	public static void callShell(String shellString) {		try {			Process process = Runtime.getRuntime().exec(shellString);			int exitValue = process.waitFor();			if (0 != exitValue) {				log.error("call shell failed. error code is :" + exitValue);			}		} catch (Throwable e) {			log.error("call shell failed. " + e);		}	}