linux比较文件夹的差异命令

可以使用

diff -ruNa s1 s2 

或者使用

diff -uN c1 c2 

结果如下：

sandbox$ tree
.
|-- dir1
|   |-- a.txt
|   `-- b.txt
`-- dir2
    |-- b.txt
    `-- c.txt

 directories,  files
sandbox$ diff -ruNa dir1 dir2
diff -ruNa dir1/a.txt dir2/a.txt
--- dir1/a.txt    -- ::36.000000000 +
+++ dir2/a.txt    -- ::00.000000000 +
@@ - +, @@
-this is a.txt
diff -ruNa dir1/b.txt dir2/b.txt
--- dir1/b.txt    -- ::45.000000000 +
+++ dir2/b.txt    -- ::57.000000000 +
@@ - + @@
-this is b.txt
+this is b2 txt.
diff -ruNa dir1/c.txt dir2/c.txt
--- dir1/c.txt    -- ::00.000000000 +
+++ dir2/c.txt    -- ::07.000000000 +
@@ -, + @@
+this is c txt.
sandbox$