Shell Script to Handle Quarterly Backup.

Hi I'm not to shell script and I'm trying to write a simple shell code to do the following.

Shell script should be run in March, June, Sept, & Dec respectively to back up files last modified in the 1st, 2nd, 3rd, and 4th quarters.

I've have the following code.

#!/bin/csh
set v1 = `date +%b`

then i want to be able to take that date and if it equals Mar store it in a new directory called Q1 and so on.

Thanks.

I'm not very familiar with csh, but something like this works in sh or bash:

v1=`date +%b` 
case $v1 in
    Mar)
        DIR=Q1
        # More processing
        ;;
    Jun)
        DIR=Q2
        ;;
    Sep)
        DIR=Q3
        ;;
    Dec)
        DIR=Q4
        ;;
    *)  echo "ERROR: This script should not be run in $v1" ;;
esac
# More processing