What could be the problems associated with cron. I want to schedule a job such that it runs say every 30 minutes or whatever time frame I need. Cron does it superbly and that's what it is basically designed to do. I don't say that I am a Unix guru and I might be missing something here.
-----Original Message----- From: Wiggins d Anconia [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 15, 2004 9:21 AM To: NandKishore.Sagi; Ishwor; Perl Beginners List; Budi Santosa Subject: RE: time managing Please bottom post... > CRON the one and the best solution to all your problems. > I doubt cron will handle "all your problems"... > For example if you want to execute a job > /home/home_dir/abcxyz/getdata.pl every one hour here is what you do. > > (1.) At UNIX $ prompt do a crontab -e > (2.) It opens a writable file (Mostly in "vi" unless ofcourse you have > not changed nay settings for Cron) Most cron's use the EDITOR environment variable to decide. > (3.) Add this line to the file "0 * * * * > /home/home_dir/abcxyz/getdata.pl" > (4.) save the file > > You are done. What this would do is to run the job getdata.pl every > hour of every day. So modify getdata.pl as per your requirements and > leave the rest to UNIX Kernel. The Unix kernel isn't really closely involved here. cron is just a service in user land that generally gets started at boot time. > > Hope this helps. > > Nandu http://danconia.org > > -----Original Message----- > From: Ishwor [mailto:[EMAIL PROTECTED] > Sent: Wednesday, September 15, 2004 9:03 AM > To: Perl Beginners List > Cc: Budi Santosa > Subject: Re: time managing > > > I am not a guru for Unix or Perl but i suppose u could to write a call > to a function that > * Pulls the job > * wait for an hour after every pull? maybe using something like > wait()? If anyone else could give a pointer on how to do the second > point. Would be great. Cheers > > On Wed, 15 Sep 2004 09:35:01 -0400 (EDT), Chris Devers > <[EMAIL PROTECTED]> wrote: > > On Wed, 15 Sep 2004, Budi Santosa wrote: > > > > > What do you mean with a cron job? > > > > You're going to have to take some initiative to figure some of these > > things out with a search engine. Here's the first hit when you put > > "cron" into Google: > > > > <http://www.unixgeeks.org/security/newbie/unix/cron-1.html> > > > > This is fundamental Unix knowledge. Maybe it would help to have a > > copy > > > of a good manual handy. There are a lot of good books out there, but > > I > > > particularly liked _Unix Power Tools_ when I was getting started, > > and > > I still like the current version of it now. > > > > -- > > Chris Devers > > -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
