Help with cron job

["Scott R. Ehrlich" <user=81@nabble.blu.org>]

 I want to set up a cron job on a linux box that dumps the filesystem once 
a week and date-stamps the file with the format dump-ddmmmyy, where 
ddmmmyy represents the dateMonthYear of the backup.. 

I've got the line figured out except for the variable date-stamp - how do 
I create that? 

Also, does cron provide the flexibility for me to say "do this all but the 
last Friday of the month"?   I learned about the L suffix for the last 
whatever, but leading up to it.   I want to introduce some flexibility for 
months that may have five Fridays vs four. 

Thanks. 

Scott 

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