Switching between aws environments often?

aws-swap.sh

# Given files ~/dev.s3cfg and ~/prd.s3cfg
# $swap dev
# $swap prd
function swap {
  echo "Setting aws key + secret for s3cmd and aws-cli to $1 ENV"
  rm -f ~/.s3cfg
  cp ~/$1.s3cfg ~/.s3cfg
  rm -rf ~/.aws/
  cp -r ~/$1.aws ~/.aws/
}