từ năm xuống một trong những đại diện cho hình ảnh đánh giá bạn muốn hiển thị. Để lọc ra tất cả các tập tin phương tiện truyền thông bên cạnh những người có một thẻ nào đó, mở rộng TagsChúng tôi sẽ xem xét một số chi tiết cụ thể cho các hệ thống | be reflected in the base permissions section of the ACL. However chmod s numeric mode must not be used for files with extended permissions because using it automatically removes any existing ACEs. Only the backup command in backup-by-inode mode will backup and restore the ACLs along with the files. Unlike other ACL implementations files do not inherit their initial ACL from their parent directory. Needless to say this is a very poor design. HP-UX ACLs The Isacl command may be used to view the ACL for a file. For a file with only normal Unix file modes set the output looks like this chavez. rw- .chem r-- . --- bronze This shows the format an ACL takes under HP-UX. Each parenthesized item is known as an access control list entry although I m just going to call them entries. The percent sign is a wildcard within an entry and the three entries in the previous listing specify the access for user chavez as a member of any group for any user in group chem and for all other users and groups respectively. A file can have up to 16 ACL entries three base entries corresponding to normal file modes and up to 13 optional entries. Here is the ACL for another file generated this time by lsacl -l silver rwx chavez. r-x .chem r-x .phys r-x rwx harvey. This ACL grants all access to user chavez with any current group membership she is the file s owner . It grants read and execute access to members of the chem and phys groups and to user hill when a member of group bio and it grants user harvey read write and execute access regardless of his group membership and no access to any other user or group. Entries within an HP-UX access control list are examined in order of decreasing specificity entries with a specific user and group are considered first followed by those with only a specific user those with only a specific group and the other entry last of all. Within a class entries are examined in order. When determining whether to permit file access the first applicable
