582033
V2EX  ›  问与答

uniq 命令疑问

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  •   582033 · Sep 25, 2017 · 1574 views
    This topic created in 3178 days ago, the information mentioned may be changed or developed.

    文件内容如下:

    1 1
    2 2
    3 3
    3 4
    5 5
    6 6
    

    使用命令 uniq -f 2 输出结果为

    1 1
    

    疑问

    命令: uniq -f 2不应该是忽略第二列, 应该输出如下结果么?

    1
    2
    3
    5
    6
    
    5 replies    2017-09-25 10:22:27 +08:00
    wellsc
        1
    wellsc  
       Sep 25, 2017 via iPhone
    man uniq
    582033
        2
    582033  
    OP
       Sep 25, 2017
    @wellsc man 过了
    kiwi95
        3
    kiwi95  
       Sep 25, 2017
    ```
    -f, --skip-fields=N
    avoid comparing the first N fields
    ```
    the first N fields 不是第 N 列
    SaulLawliet
        4
    SaulLawliet  
       Sep 25, 2017
    避免比较前 N 个字段, 不是忽略.
    582033
        5
    582033  
    OP
       Sep 25, 2017
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