SYNC(3) Library Functions Manual SYNC(3)

sync — schedule file system updates


#include <unistd.h>

void sync(void);

The sync () function shall cause all information in memory that updates file systems to be scheduled for writing out to all file systems.

The writing, although scheduled, is not necessarily complete upon return from sync ().

The sync () function shall not return a value.

No errors are defined.

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None.

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fsync(3)

XBD <unistd.h>

First released in Issue 4, Version 2.

Moved from X/OPEN UNIX extension to BASE.

June 14, 2024 posix.fail