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1.1 ! root 1: .TH SYNC 2 "12 February 1983" ! 2: .UC 4 ! 3: .SH NAME ! 4: sync \- update super-block ! 5: .SH SYNOPSIS ! 6: .B sync() ! 7: .SH DESCRIPTION ! 8: .I Sync ! 9: causes all information in core ! 10: memory that should be on disk to be written out. ! 11: This includes modified super blocks, ! 12: modified i-nodes, and delayed block I/O. ! 13: .PP ! 14: .I Sync ! 15: should be used by programs which examine a file system, ! 16: for example ! 17: .I "fsck, df," ! 18: etc. ! 19: .I Sync ! 20: is mandatory before a boot. ! 21: .SH "SEE ALSO" ! 22: fsync(2), sync(8), update(8) ! 23: .SH BUGS ! 24: The writing, although scheduled, is not necessarily ! 25: complete upon return from ! 26: .IR sync .
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