SYNC(1) SYNC(1) sync - Synchronize cached writes to persistent storage sync [] []... , , . -d, --data , -f, --file-system --help --version Persistence guarantees vary per system. See the system calls below for more details. . coreutils: Copyright (C) 2023 Free Software Foundation, Inc. 3+: 3 . : . , . fdatasync(2), fsync(2), sync(2), syncfs(2) ,,info '(coreutils) sync invocation'" ; 3 . . , - TODO <>. coreutils 9.4 2024 SYNC(1)