Why, when I restore 1 file, dar report 3 files have been restored?
if you restore for example the file usr/bin/emacs dar will first restore usr (if the directory already exists, it will get its date and ownership restored, all existing files will be preserved), then /usr/bin is restored, and last usr/bin/emacs is restored. Thus 3 inodes have been restored or modified while only one file has been asked for restoration.