Bảng phân quyền truy cập file
Number Octal Permission Representation Ref 0 No permission — 1 Execute permission –x 2 Write permission -w- 3 Execute and write permission: 1 (execute) + 2 (write) = 3 -wx 4 Read permission r– 5 Read and execute permission: 4 (read) + 1 (execute) = 5 r-x 6 Read and write permission: 4 (read) […]