Mine

#!/bin/bash
Y=2007

for m in 01 02 03 04 05 06 07 08 09 10 11 12
do 
  for d in 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 
  do
    TODAY=`date +%Y%m%d`
    D=$Y$m$d
    if [ $D -lt $TODAY ]
    then
      F=rockbox-$D.txt
      if [ ! -f $F ]
      then
        curl -o $F http://www.rockbox.org/irc/$F
      fi
    fi
  done
done