Thanks Ed.
What is the final || true for? Must the logrotate script always return
true?
Philippe
On 6 Jun 2005, at 16:58, Ed Wilts wrote:
On Mon, Jun 06, 2005 at 04:46:53PM +0200, Philippe de Rochambeau wrote:
I am having trouble understanding the following /etc/logrotate.d/ file
httpd:
/var/log/httpd/*log {
missingok
notifempty
sharedscripts
postrotate
/bin/kill -HUP `cat /var/run/httpd.pid 2>/dev/null` 2>
/dev/null || true
endscript
}
~
The " /bin/kill -HUP `cat /var/run/httpd.pid 2>/dev/null` 2> /dev/null
|| true " line apparently means "kill the httpd daemon". But why would
you want to kill the httpd daemon after rotating the logs?
kill -HUP means that you don't want to actually kill the daemon but to
send it a signal to wake up and re-read its configuration files and
re-open its log files. In this case, it will open new copies of
access_log, error_log, etc.
Furthermore, how would you write the above configuration file to
rotate
log files whose names contain the current date (e.g., 20050606.log,
20050607.log, etc.)?
In the postrotate section, rename the log file from whatever.log.1 to
the date format. Remember, though, that you have to handle multiple
files. You don't want to rename both access_log.1 and error_log.1 to
20050606.log.
If you do rename the log files, note that you'll be responsible for
cleaning them up. logrotate normally will delete older files, keeping
by default 4 versions. So, when it comes time to rotate log.4, it will
be deleted instead of being renamed to log.5.
--
Ed Wilts, RHCE
Mounds View, MN, USA
mailto:ewilts@xxxxxxxxxx
Member #1, Red Hat Community Ambassador Program
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