Linux对比文件夹内容的命令 Diff解释

dir1下有个log_1.log dir2下有个log_2.log 两个文件如下：

[email protected]_194_111_sles10_64:/home/jdxochen/exercise> cat -v dir1/log_1.log

1

3

5

7

9

0

[email protected]_194_111_sles10_64:/home/jdxochen/exercise> cat -v dir2/log_2.log

2

4

6

8

0

0

若想看详细的内容区别 使用diff -urNa dir1 dir2

参数说明：

-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.

Linux对比文件夹内容的命令 Diff解释