NAME    [Toc]    [Back]

       sync - Update all file systems

SYNOPSIS    [Toc]    [Back]

       #include <unistd.h>

       void sync(
               void );

STANDARDS    [Toc]    [Back]

       Interfaces  documented  on  this reference page conform to
       industry standards as follows:

       sync(): XSH4.2, XSH5.0

       Refer to the standards(5) reference page for more information
 about industry standards and associated tags.

DESCRIPTION    [Toc]    [Back]

       The  sync() function causes all information in memory that
       should be on disk to be written out. The writing, although
       scheduled,  is  not  necessarily complete upon return from
       the sync() function. Types of information  to  be  written
       include  modified  superblocks,  inodes,  data blocks, and
       indirect blocks.

       The sync() function should be used by programs that  examine
 a file system, such as the df and fsck commands.

SEE ALSO    [Toc]    [Back]

       Commands: sync(8)

       Functions: fsync(2)

       Standards: standards(5)



                                                          sync(2)