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(freebsd section 1)
man page for fsync

FSYNC(1)						    BSD General Commands Manual 						  FSYNC(1)

NAME
fsync -- synchronize a file's in-core state with that on disk SYNOPSIS
fsync file ... DESCRIPTION
The fsync utility causes all the modified data and meta-data of all the files named on the command line to be written to a permanent storage device. The fsync utility uses the fsync(2) function call. EXIT STATUS
If an error occurs, the fsync utility proceeds to the next file, and exits >0. Otherwise, it exits 0. SEE ALSO
fsync(2), sync(2), syncer(4), halt(8), reboot(8) HISTORY
The fsync command first appeared in FreeBSD 4.3. BSD
January 25, 2005 BSD

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