differ.sh

#!/bin/sh
for file in *.yml; do
    target='/usr/local/etc/rssp/django'
    command="sudo diff /home/shwang/eponym/${file} ${target}/${file}"
    if `eval "${command} > /dev/null"`; then
        echo "${file} is unchanged."
    else
        echo "${file} has been changed. Here are some raisins:"
        eval ${command}
    fi  
done