????????????????:
????date
????????????? Fri Aug  3 14:15:16 CST 2007
????date '+%x %X'
????????????? 2009??08??03?? 14?15??00??
????date -s
????????????????????
?????????????????????????????: date -s 2007-08-03
???????????????:date -s 14:15:00
??????????????????????????????????????????????????:date -s "2007-08-03 14:15:00"
?????????????????:clock -w
???????????д??CMOS
????????????bios???(clock==hwclock)??
????hwclock [-rw]
????-r?????????? BIOS ???
????-w?????? Linux ?????д?? BIOS ???У?