reference:
http://zhangyuexing.7ta.cn/Article/12289/1444/
-
去除重复行
cat 1.txt|sort|uniq
reference:
http://zhangyuexing.7ta.cn/Article/12289/1444/ -
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- 原文地址：https://www.cnblogs.com/lexus/p/1748128.html