Bash shell script to automate PGP key signing

sign.sh

while [ 1 ]; do
    echo ">> Enter an email address:"
    read EMAIL
    gpg --keyserver pgp.mit.edu --search-keys $EMAIL
    FINGERPRINT=`gpg --fingerprint $EMAIL`
    [[ $FINGERPRINT =~ 2048[DR]/([0-9A-F]{8}) ]];
    KEY_ID=${BASH_REMATCH[1]}
    gpg --sign-key $EMAIL
    echo ">> Going to sign key $KEY_ID"
    gpg --armor --export $KEY_ID > $KEY_ID.asc 
done