You can easily unfollow all your friends.
#!/bin/sh
SCREEN_NAME='xxxx'
PASSWORD='xxxx'
curl -q -u ${SCREEN_NAME}:${PASSWORD} -X GET http://api.twitter.com/1/friends/ids.json?id=${SCREEN_NAME} | sed -e 's/\[//g;s/\]//g;s/,/ /g' > unfollow.txt for ID in `cat unfollow.txt`
do
echo "Unfollowing ${ID}"
curl -u ${SCREEN_NAME}:${PASSWORD} -X DELETE http://api.twitter.com/1/friendships/destroy/${ID}.json
done
