Linux下我们用 sort 与 uniq 的命令来实现去重复行。
去重复行
简单的用法如下，如一个文件名：happybirthday.txt cat happybirthday.txt (显示文件内容) Happy Birthday to You! Happy Birthday to You! Happy Birthday Dear Tux! Happy Birthday to You! cat happybirthday.txt|sort （排序） Happy Birthday Dear Tux! Happy Birthday to You! Happy Birthday to You! Happy Birthday to You! cat happybirthday.txt|sort|uniq (去重复行) Happy Birthday Dear Tux! Happy Birthday to You!
