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  • Linux面试必问-对照目录内容的命令“Diff”具体解释

    dir1下有个log_1.log dir2下有个log_2.log 两个文件例如以下:

    p_ylwu@VM_194_111_sles10_64:/home/jdxochen/exercise> cat -v dir1/log_1.log 
    1
    3
    5
    7
    9
    0
    p_ylwu@VM_194_111_sles10_64:/home/jdxochen/exercise> cat -v dir2/log_2.log 
    2
    4
    6
    8
    0
    0

    若想看具体的内容差别 使用diff -urNa dir1 dir2



    參数说明:

    -a  Treat  all  files  as text and compare them     
        line-by-line, even if they do not seem to be text.

    -N, --new-file
        In  directory  comparison, if a file is found in
        only one directory, treat it as present but empty
        in the other directory.

    -r  When comparing directories, recursively compare
        any subdirectories found.
    -u  Use the unified output format.
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  • 原文地址:https://www.cnblogs.com/slgkaifa/p/6863876.html
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