Finding difference between 2 directories in linux

 

Hi guys, 

      I was trying to find the difference between two directories, dir structure as follows.
  • dir1/subdir/file.txt
  • dir2/subdir/nffile.txt

    • when i tried with "diff -r dir1 dir2" it shows only the content difference in files but i want interns of new file addition.

    Any possibility that we can find the difference between these dir using the "diff" command.

    尝试使用--brief选项，如： 

    $ diff --recursive --brief dir1 dir2
Only in dir1/dir1: file1
Only in dir2/dir1: file2
Only in dir1: dir2
$

    Alt.1 - use of diff 

    diff <(ls dir1) <(ls dir2)

    Alt.2 - script without use of diff 

     for i in /my/directory/*; do
    name=$(basename "$i")
    if [[ ! -e "/my/other/directory/$name" ]]; then
       echo $name not found in other directory
    fi
 done

    diff -qrN dir1 dir2

    if one of the directories has a name that can be confused with a paramenter 

    diff -qrN -- -f -z

    where -f and -z are actually directory names

    remove the q parameter to have more detail about what changed. If you want even more detail use the following 

    diff -rupN -- dir1 dir2
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