+Entry_is_modified ()
+{
+ # Returns true if file exists and it is also present in "cow" directory
+ # This means it is modified in respect to read-only media, so it deserve
+ # to be saved
+
+ entry="${1}"
+
+ if [ -e "${entry}" ] || [ -L "${entry}" ]
+ then
+ if [ -e "${DEF_SNAP_COW}/${entry}" ] || [ -L "${DEF_SNAP_COW}/${entry}" ]
+ then
+ return 0
+ fi
+ fi
+ return 1
+}
+