Through any file manager (Filza file manageroriFile):
As an example, takeiFile.
First we find the directory in which the file is interesting to us, for example, I want to view the rights for the folderLibrary (/ var / mobile)


Apparently from an example on the folder there are the following rights:
---------------------------
Own :
Owner : mobile
Group : mobile

Access rights :
User : Read, Write, Run
Group : Read, Run
Everything : Read, Run
---------------------------
Remember these values. And if, for example, when copying a backup, the rights to this folder have disappeared:
eg,Access rights for User become: Read, Run ,
then I go to iFile and set them back:Read, Write, Run

Similarly, you do with other system files when you copy backup files.
If you don’t remember what access rights and ownership rights you had on the files you modified, ask in the comments . Users with similar iOS will prompt you the correct values!

Read more about access rights and ownership in the topic.[FAQ] Access rights and ownership