Question

linux下怎样比较两个目录下所有文件是否有区别

Answer 1

使用diff命令即可
diff path1 path2
实例如下：
[root@mpf202 mao]# mkdir /mao1
[root@mpf202 mao]# mkdir /mao2
[root@mpf202 mao]# diff /mao1 /mao2
[root@mpf202 mao]# touch /mao1/test
[root@mpf202 mao]# diff /mao1 /mao2
Only in /mao1: test
[root@mpf202 mao]#

Answer 2

diff -ruNa dir1 dir2 > dir.diff

Answer 3

diff -rqNa path1 path2