摘要：
选择不到两百万(1934897)行，186Mbyte 的文本文档做测试。# time (sort ja0106.list.txt |uniq > my1.txt)real 1m17.259suser 1m17.461ssys 0m0.469s# time (sort -u ja0106.list.txt > my2.txt)real 0m57.306suser 0m57.076ssys 0m0.218s-------------------------------------------------------------186M ja0106.list.txt9.1M my1.t 阅读全文
