Query: update
OS: opendarwin
Section: 8
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
UPDATE(8) BSD System Manager's Manual UPDATE(8)NAMEupdate -- flush internal filesystem caches to disk frequentlySYNOPSISupdateDESCRIPTIONThe update command helps protect the integrity of disk volumes by flushing volatile cached filesystem data to disk at thirty second inter- vals. Update uses the sync(2) function call to do the task. Update is commonly invoked at startup time by rc(8) when the system goes multi-user.SEE ALSOsync(2), fsck(8), init(8), rc(8), sync(8)BUGSIt is possible on some systems that a sync occurring simultaneously with a crash may cause file system damage. See fsck(8).HISTORYAn update command appeared in Version 6 AT&T UNIX.BSDApril 19, 1994 BSD
Related Man Pages |
---|
sync(2) - netbsd |
apmlabel(8) - netbsd |
svhlabel(8) - netbsd |
sync(2) - sunos |
syncer(4) - freebsd |