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0 Command: sync | Section: 2 | Source: Digital UNIX | File: sync.2.gz
sync(2) System Calls Manual sync(2) NAME sync - Updates all file systems SYNOPSIS #include <unistd.h> void sync (void); STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: sync(): XPG4-UNIX Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. DESCRIPTION The sync() function causes all information in memory that should be on disk to be written out. The writing, although scheduled, is not neces- sarily complete upon return from the sync() function. Types of infor- mation to be written include modified superblocks, inodes, data blocks, and indirect blocks. The sync() function should be used by programs that examine a file sys- tem, such as the df command and the fsck command. RELATED INFORMATION Functions: fsync(2) Commands: sync(8) Standards: standards(5) delim off sync(2)

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