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java操作linux,調用shell命令

api rsh pos orm exec creat shell cep time()

import org.junit.jupiter.api.Test;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.logging.Level;
import java.util.logging.Logger;

public class Test001 {
    public
static String exec(String command) throws InterruptedException { String returnString = ""; Process pro = null; Runtime runTime = Runtime.getRuntime(); if (runTime == null) { System.err.println("Create runtime false!"); } try { pro
= runTime.exec(command); BufferedReader input = new BufferedReader(new InputStreamReader(pro.getInputStream())); PrintWriter output = new PrintWriter(new OutputStreamWriter(pro.getOutputStream())); String line; while ((line = input.readLine()) != null
) { returnString = returnString + line + "\n"; } input.close(); output.close(); pro.destroy(); } catch (IOException ex) { Logger.getLogger(Test001.class.getName()).log(Level.SEVERE, null, ex); } return returnString; } @Test public void test() throws Exception { System.out.println(exec("ls -al")); } }

mac同樣適用

調用shell腳本,判斷是否正常執行,如果正常結束,Process的waitFor()方法返回0

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);  
    }  
}

package test.shell;

import java.io.BufferedReader;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

public class JavaShellUtil {
    //基本路徑
    private static final String basePath = "/tmp/";

    //記錄Shell執行狀況的日誌文件的位置(絕對路徑)
    private static final String executeShellLogFile = basePath + "executeShell.log";

    //發送文件到Kondor系統的Shell的文件名(絕對路徑)
    private static final String sendKondorShellName = basePath + "sendKondorFile.sh";

    public int executeShell(String shellCommand) throws IOException {
        int success = 0;
        StringBuffer stringBuffer = new StringBuffer();
        BufferedReader bufferedReader = null;
//格式化日期時間,記錄日誌時使用  
        DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:SS ");

        try {
            stringBuffer.append(dateFormat.format(new Date())).append("準備執行Shell命令 ").append(shellCommand).append(" \r\n");

            Process pid = null;
            String[] cmd = {"/bin/sh", "-c", shellCommand};
            //執行Shell命令
            pid = Runtime.getRuntime().exec(cmd);
            if (pid != null) {
                stringBuffer.append("進程號:").append(pid.toString()).append("\r\n");
                //bufferedReader用於讀取Shell的輸出內容 bufferedReader = new BufferedReader(new InputStreamReader(pid.getInputStream()), 1024);
                pid.waitFor();
            } else {
                stringBuffer.append("沒有pid\r\n");
            }
            stringBuffer.append(dateFormat.format(new Date())).append("Shell命令執行完畢\r\n執行結果為:\r\n");
            String line = null;
            //讀取Shell的輸出內容,並添加到stringBuffer中
            while (bufferedReader != null && (line = bufferedReader.readLine()) != null) {
                stringBuffer.append(line).append("\r\n");
            }
        } catch (Exception ioe) {
            stringBuffer.append("執行Shell命令時發生異常:\r\n").append(ioe.getMessage()).append("\r\n");
        } finally {
            if (bufferedReader != null) {
                OutputStreamWriter outputStreamWriter = null;
                try {
                    bufferedReader.close();
                    //將Shell的執行情況輸出到日誌文件中
                    OutputStream outputStream = new FileOutputStream(executeShellLogFile);
                    outputStreamWriter = new OutputStreamWriter(outputStream, "UTF-8");
                    outputStreamWriter.write(stringBuffer.toString());
                } catch (Exception e) {
                    e.printStackTrace();
                } finally {
                    outputStreamWriter.close();
                }
            }
            success = 1;
        }
        return success;
    }


}  

更多資料:

http://www.cnblogs.com/shihaiming/p/5884859.html

http://www.jb51.net/article/69930.htm

java操作linux,調用shell命令