Les Mikesell wrote: >On Sun, 2005-12-04 at 15:35, Jonathan Wright wrote: > > >>Robert wrote: >> >> >>>Considering my nebulous request and your apparent lack of expertise in >>>applied clairvoyance, fine. >>>The "3rd Monday" part is used in generating reminders to a each of a >>>group of OldFarts that gets together monthly to inventory aches, pains >>>and, yes, empty chairs. The "Sunday before" requirement will be used to >>>run a script (already working) to create a series of image files >>>containing critical stuff, to be burned (manually) to DVDs to go with me >>>to the meeting, to be given to a trusted person for safekeeping. >>> >>>The following is what I have now, stripped down to the bare essentials >>>for clarity(?): >>> >>> >>Looking at the way you've done it, you could to it like this: >> >>if [$(date +%d) == $(date +%d -d $(date +%Y\/%m)/$((21-$(($(date +%w -d $(date +%Y\/%m)/21)-1)))))]; >>then >> // do 3rd Monday stuff... >>elif [$(date +%d) == $(date +%d -d $(date +%Y\/%m)/$((21-$(($(date +%w -d $(date +%Y\/%m)/21))))))]; >>then >> // do Sunday before stuff >>else >> // do nothing :) >>fi >> >>and therefore run the NSS.sh script directly. >> >> > >My math is too fuzzy to decipher that. How about running this >every Sunday from cron? > >DOM=`date --date=tomorrow +%d` >if [ "$DOM" -lt 15 -o "$DOM" -gt 21 ] > then exit >fi >..rest of script goes here... > >I think that means today's %d must be between 14 and 20, >but the concept is handy because the string you hand >date= can be something like 'today + 2 weeks' if you >need to track things that fall into next month. > > > Thanks to all for the responses. One of the really neat things about *nix is the fact that there are so many solutions to any given problem. One of the really neat things about CentOS is this list.