On Apr 25, 2009, at 4:23 PM, Kris Tilford wrote:
> > On Apr 25, 2009, at 3:53 PM, Mel wrote: > >> The percentages before 3:00 AM with every thing turned off would >> range from 2% to 5% and within 10 minutes would display from about >> 8% to 14% which would last for several minutes and then go back to >> the percentages prior to 3:00 AM. > > The daily cron scripts run at 3:15 AM. This is what you're observing. > > > Here's more info on cron scripts: > Each maintenance script — daily, weekly, and monthly — has a specific > function. Their functions have varied over different versions of Mac > OS X. > > The daily script removes old log files, "scratch" and "junk" files, > backs-up the NetInfo database (Mac OS X 10.4 Tiger and earlier), > reports a variety of system and network statistics, and rotates the > system.log file. Under Tiger, the daily script also cleans up scratch > fax files and prunes asl.log, the log file for the then-new Apple > System Loggingfacility. Under Mac OS X 10.5 Leopard, the daily script > also prunes the asl.db file that replaced the asl.log file for Apple > System Logging. > The output from the daily script is written to the /var/log/daily.out > file, which can be viewed in Console. > By default, the daily script is scheduled to run daily at 03:15 hours > local time. > > The weekly script rebuilds the locate and whatis databases. Depending > on the version of Mac OS X, it also rotates the following log files: > ftp.log, lookupd.log, lpr.log,mail.log, netinfo.log, ipfw.log, > ppp.log, and secure.log > The output from the weekly script is written to the /var/log/ > weekly.out file, which can be viewed in Console. > By default, the weekly script is scheduled to run every Saturday at a > specific time. Under Tiger and later, it runs at 03:15 hours local > time. Under Mac OS X 10.3 Panther and Mac OS X 10.2 Jaguar it runs at > 04:30 hours local time. > > The monthly script reports per-user usage accounting and rotates — > depending on the version of Mac OS X — the wtmp, install.log, and > cu.modem.log files. > The output from the monthly script is written to the /var/log/ > monthly.out file, which can be viewed in Console. > By default, the monthly script is scheduled to run on the first of the > month at 05:30 hours local time. Kris, Since I've been meaning to question these Crons, I thank you for this information. I'm sure there are others new (like me) to OS X that will benefit from your information. I assume that this maintenance feature requires the computer to be running at the times you indicate. Can you give us an gross estimate of the time these features take to complete. I would think it's based on computer/program usage, speed, etc., but it would be good to know.... Thanks again Kris, Jim McGee (aka: mudbro) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
