??????ù????????? logrotate ??????????

????????????????????????????????????????Щ??????????????????вο????????????????????????????????????????logrotate ??ù?????????????????????????????????logrotate ??ó????? /etc/logrotate.conf ????????????????????????????????????????????????????￡?logrotate.conf ??????? include ????????ó???????? /etc/logrotate.d ?е?淶??????????????? logrotate.conf ?????
$ cat /etc/logrotate.conf 
# see "man logrotate" for details 
# rotate log files weekly 
weekly 
 
# keep 4 weeks worth of backlogs 
rotate 4 
 
# create new (empty) log files after rotating old ones 
create 
 
# use date as a suffix of the rotated file 
dateext 
 
# uncomment this if you want your log files compressed 
#compress 
 
# RPM packages drop log rotation information into this directory 
include /etc/logrotate.d 
# no packages own wtmp and btmp -- we'll rotate them here 
/var/log/wtmp { 
monthly 
create 0664 root utmp 
minsize 1M 
rotate 1 
} 
 
/var/log/btmp { 
missingok 
monthly 
create 0600 root utmp 
rotate 1 
} 
 
# system-specific logs may be also be configured here.

????logrotate.conf ????????????????????????? logro-tate ?????Щ??????????????????????????????????? daily???????weekly???????? monthly????￡?????????rotate??????????????????????????????????????create ??????? logrotate ????????μ?????????????????????????????????????????????dateext ???????? logrotate ????????????????????compress ?????????????б?????????????????? gzip ?????include ?????????????? logrotate ?淶????????? /etc/logrotate.d ????????? rpm ????? rpm ????ó??????????????rpm ?? logrotate ?淶???????????С?

????logrotate.conf ?е????????? /var/log/wtmp ?? /var/log/btmp ????????wtmp ????????????? btmp ???????????????????????????Щ??? who ???????missingok ?????????????????????????? nomissingok??????????? logrotate ???????У?????????????????????????????????? monthly ????????????????? weekly??create ?????????????????????????????????????????? rotate?????????????????????

????/etc/logrotate.d/httpd ???????ó??? logrotate ????????????????
$ cat /etc/logrotate.d/httpd 
/var/log/httpd/*log { 
missingok 
notifempty 
sharedscripts 
delaycompress 
postrotate 
/sbin/service httpd reload > /dev/null 2>/dev/null || true 
endscript 
}

???????????? httpd ??????????????????? logrotate.conf ?е? include ?????? /etc/logrotate.d ?У?????? /var/log/httpd ????????? log (*log) ??β????????????????????????notifempty ???????? logrotate ???????????????????д???????????sharedscripts ???????? logrotate ???????? prerotate ?? postrotate ?????????????????????????????????Ρ?delaycompress ???????? logrotate ???????????????copytruncate ???????г?????????????У??????? logrotate ??????????????????????????????????????????????′????????????????????????Щ???????????????????????????￡?????д????????????????????logrotate ??ù??????? prerotate ?? endscript ???????????????????????? postrotate ?? endscript ???????

????logrotate ??ù?????ú????????????????в??????????????????á???????????? logrotate ??????