Bash: Loop over dates

date_loop.sh

#!/bin/bash

now=`date +"%Y-%m-%d" -d "05/06/2012"`
end=`date +"%Y-%m-%d" -d "05/23/2012"`

while [ "$now" != "$end" ] ; 
do 
        now=`date +"%Y-%m-%d" -d "$now + 1 day"`; 
        echo $now
done

start=$(date '+%T')
end=$(echo $(date --date '+1 min') | awk '{print $4}')
while [[ $end > $(date +%T) ]];
do
brute.py ftp_login host=202.148.32.101 user=another_ct password=slowdown
done

I'm trying to run this on Mac and I get:

date: illegal time format

Any tips?

on Mac, use -v option.

$(date -v -1d +"%Y-%m-%d")