C Shell gurus, please help!!!

I want to create an automated script that runs each day. What I want the script to do is to grep on the previous day's date (yesterday) from a text file and output the results to a file. Date is in the format as shown below:

egrep "\[01\/Nov\/2003" /mydir/myfiles/ > /home/tmp/mytestfile

How can I achieve this result?

Thanks in advance

I know using yesterday can turn into a total mess. One idea comes to mind , write your script in perl, invoke date(use Date::Calc qw(:all)) and use add_Delta_days.

You can find Date::Calc using google - search for "perl Date::Calc"

The syntax: Add_Delta_Days($year,$month,$day,"#DaysToAdd") in your case #DaysToAdd would by -1. This will return the day before the $year,$month,$day from above in the format year,month,day.

You can then use that to grep your directories/files in perl using either the system("command") or back ticks `command`.

Good luck.................