zoukankan      html  css  js  c++  java
  • shell脚本,计算创建100个文件所用多少时间。

    [root@localhost mulu]# ls
    [root@localhost mulu]# time for i in `seq 100`; do touch file$i; done
    
    real    0m0.104s
    user    0m0.012s
    sys    0m0.090s
    [root@localhost mulu]# ls
    file1    file13  file18  file22  file27  file31  file36  file40  file45  file5   file54  file59  file63  file68  file72  file77  file81  file86  file90  file95
    file10   file14  file19  file23  file28  file32  file37  file41  file46  file50  file55  file6   file64  file69  file73  file78  file82  file87  file91  file96
    file100  file15  file2   file24  file29  file33  file38  file42  file47  file51  file56  file60  file65  file7   file74  file79  file83  file88  file92  file97
    file11   file16  file20  file25  file3   file34  file39  file43  file48  file52  file57  file61  file66  file70  file75  file8   file84  file89  file93  file98
    file12   file17  file21  file26  file30  file35  file4   file44  file49  file53  file58  file62  file67  file71  file76  file80  file85  file9   file94  file99
    [root@localhost mulu]# rm -rf file*
    [root@localhost mulu]# ls
    [root@localhost mulu]# time touch file{1..100}
    
    real    0m0.010s
    user    0m0.000s
    sys    0m0.009s
    [root@localhost mulu]# ls
    file1    file13  file18  file22  file27  file31  file36  file40  file45  file5   file54  file59  file63  file68  file72  file77  file81  file86  file90  file95
    file10   file14  file19  file23  file28  file32  file37  file41  file46  file50  file55  file6   file64  file69  file73  file78  file82  file87  file91  file96
    file100  file15  file2   file24  file29  file33  file38  file42  file47  file51  file56  file60  file65  file7   file74  file79  file83  file88  file92  file97
    file11   file16  file20  file25  file3   file34  file39  file43  file48  file52  file57  file61  file66  file70  file75  file8   file84  file89  file93  file98
    file12   file17  file21  file26  file30  file35  file4   file44  file49  file53  file58  file62  file67  file71  file76  file80  file85  file9   file94  file99
    [root@localhost mulu]# 
  • 相关阅读:
    类UNIX系统
    wxpython
    新闻
    游戏公司排名
    游戏网站
    3D打印
    python程序报"iccp known incorrect srgb profile" 警告
    python命令行退出
    plc和嵌入式的区别
    要理解互联网的变化轨迹,唯一的方法是弄清背后的规律。“在线”这个所有人既熟悉又陌生的词语,既是常识,也是我一系列想法的核心。
  • 原文地址:https://www.cnblogs.com/wangyuebo/p/5821846.html
Copyright © 2011-2022 走看看