java调用shell命令的两种方法

运行环境：centos6.5  eclipse

可以借鉴转码译文分析

public static void insert(){

        String pathshell="/home/wjx/spider/baidu/java.sh";
        //String cmd="sort /home/wjx/spider/baidu/SearchUrl_CSDN.txt | uniq >/home/wjx/spider/baidu/SearchUrl_CSDN_b.txt;sort /home/wjx/spider/baidu/SearchUrl_OSchina.txt | uniq >/home/wjx/spider/baidu/SearchUrl_OSchina_b.txt";  
        Process ps;
        try {
        //ps = Runtime.getRuntime().exec(new String[]{"sh","-c",cmd});
        ps = Runtime.getRuntime().exec(pathshell);
       ps.waitFor();
       String path = "/home/wjx/spider/baidu/";
        File f = new File(path);
        String[] names = f.list(new FilenameFilter() {
            public boolean accept(File dir, String name) {
                return name.indexOf(".txt") != -1;// 等于-1，表示不存在
            }
        });
        for (String str : names) {
            if (str.endsWith("_b.txt"))
                //insert_b(path + str);
            if (str.endsWith("_v.txt"))
                ;
        }} catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }  

    }

"/home/wjx/spider/baidu/java.sh" 中的shell脚本：

sort /home/wjx/spider/baidu/SearchUrl_CSDN.txt | uniq >/home/wjx/spider/baidu/SearchUrl_CSDN_b.txt
sort /home/wjx/spider/baidu/SearchUrl_OSchina.txt | uniq >/home/wjx/spider/baidu/SearchUrl_OSchina_b.txt