can someone explain crontab to me better?

[Tom Joyce]

Yes, I am sorry for that, I had not gotten your reply when I wrote and
sent mine. :-) thanks.

Thanks again,
Tom Joyce
tomjoyce at gmail.com


On Sun, 19 Sep 2004 20:14:33 +0000, Benjamin Sobotta <mayday at gmx.net> wrote:
> hi again
> 
> I'm not quite sure but I think your command
> 
> * */2   *   *   *   root    /usr/libexec/locate.updatedb
> 
> would make it run every minute every second hour.
> 
> 
> 
> On Sunday 19 September 2004 17:55, Tom Joyce wrote:
> > I believe that you would simply set 2 hours, as in:
> >
> > * */2   *   *   *   root    /usr/libexec/locate.updatedb
> >
> > That would run the script in /usr/libexec/ called "locate.updatedb"
> > every 2 hours, taking as long as it needs to.
> >
> > Please correct me if anyone knows more about it than I do.
> > Thanks...
> >
> > On Sun, 19 Sep 2004 13:42:36 -0400, robg <robg.list at gmail.com> wrote:
> > > hi,
> > >
> > > i am having a hard time understanding crontab after reading
> > > http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/configtuning-cr
> > >on.html .. i still can't understand the minutes/hours...
> > >
> > > when you specify minutes, does it mean the command is run every X
> > > minutes? and if you specify a hour AND minutes, the command is run
> > > every X hours for X minutes?  so if i did
> > >
> > > */5 */2 * * * root /usr/libexec/locate.updatedb
> > >
> > > it would run that command every two hours for 5 minutes?  so when two
> > > hours comes around, itll keep running that command over and over for 5
> > > minutes? or will it run that command once every 5 minutes for two
> > > hours? im confused
> > >
> > > i just want to know the syntax to run something every 2 hours once ..
> > > can someone clarify this
> > >
> > > thanks
> > >
> > > --
> > > robg
> > > robg.list at gmail.com
> > > _______________________________________________
> > > freebsd-newbies at freebsd.org mailing list
> > > http://lists.freebsd.org/mailman/listinfo/freebsd-newbies
> > > To unsubscribe, send any mail to
> > > "freebsd-newbies-unsubscribe at freebsd.org"
> 



-- 
Thomas Joyce
tomjoyce at gmail.com
ceo at jafwebdesign.com