finding simillar folders (size and number of files anf files name)

2 次查看（过去 30 天）
mohammad
mohammad 2011-9-19
In an specified folder there are some folders for example in these names:a,b,c,d,e,f,... .In each of these folders also there are some .xls files. Sometimes same .xls files are inside some of them. for example the same .xls files that are inside 'a', there are also in folder 'd' too. (exactly the same names and size and numbers of .xls files).
now its needed finding these similar folders that inside them are the same. and then renaming one of them to '(numbers of .xls file)' and deleting others similar. for example inside of 'a','f','e','w','f','c' are same and inside of these are the same 16 .xls files. it's needed deleting 'f','e','w','f','c'. then renaming 'a' to '(16)'
we could determine these similar folders from the size of them also and i think this is the simplest way (but not accurate because maybe exist 2 folder in same size but not same inside)
  2 个评论
Jan
Jan 2011-9-19
What exactly is the size of a folder? Are you looking for similar or equal files? Would a checksum of the files or of all files insider a folder (and subfolders?) help?
mohammad
mohammad 2011-9-19
I am looking for equal folders that all files inside a folder to be same (equal) with all files of an another folder.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Jan
Jan 2011-9-19
Usually files are compared using checksums, e.g. FEX: CalcMD5.
[EDITED]: You can use FEX: DataHash for the struct replied by DIR:
aDir = dir(FolderName);
isFile = not([aDir.isdir]);
fileSize = [aDir(isFile).size];
Hash = DataHash(sort(fileSize));
Now the number of the files is considered also and the sizes of the different files. It would be more accurate to use the names and dates also:
aDir = dir(FolderName);
isFile = not([aDir.isdir]);
Hash = DataHash(aDir(isFile));
Now you can store a list of already occurred Hash values in a cell string and if any(strcmp(Hash, HashList)) is TRUE, delete the folder, if FALSE rename it.
  4 个评论
显示 2更早的评论
mohammad
mohammad 2011-9-19
thanks, no i am not sure ;)
i told because speed of comparing these folders is very important for me and because of this i suggested that
thanks a lot
let me check your answer
Jan
Jan 2011-9-19
In general validity is more important than speed. Creating a wrong result with a high speed will lead to troubles, creating a correct result slowly will increase the consumption of coffee.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 File Operations 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by