Stupid Bash Scripts - Twitter Follower Grabber

#!/bin/bash
#
#
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#            \   |  |  | /   -_)  |   _|   _` |   _ \   _|   _ \   _| _` |
#         _| _| \_,_| _\_\ \___| _| \__| \__,_| \___/ \__| \___/ _| \__, |
#                                                                   ____/
#                              http://nukeit.org
#
#
#Grab your followers' followers and send them to 1k line lists for use with my autofollow script.
#
#Set your username and password here.
USER=""
PASS=""
#Grab first 50 pages of your follower list to avoid the limits
for (( a=1; a<=49; a++ )); do curl http://twitter.com/statuses/followers.xml?page=$a -u$USER:$PASS >> myfollowers.xml; done
#Jack all the screen names
cat myfollowers.xml |grep screen_name > followers2
#Clean up the output
cat followers2 | sed -e 's/\<screen_name>//g' | sed -e 's/\<in_reply_to_screen_name>//g' | sed -e 's/<//g' | sed -e 's/\///g' | sed 's/ //g' | sed '/^$/d' | sort -ui > allfollowers
#Do it again but only keep the first 50 lines to avoid the limits
cat followers2 | sed -e 's/\<screen_name>//g' | sed -e 's/\<in_reply_to_screen_name>//g' | sed -e 's/<//g' | sed -e 's/\///g' | sed 's/ //g' | sed '/^$/d' | sort -ui | head -n 50 > followers3
#Grab your followers followers
for tweeps in $(cat followers3); do curl http://twitter.com/statuses/friends/${tweeps}.xml -u$USER:$PASS >> followfollow; done
#Jack all the screen names
cat followfollow |grep screen_name > followfollow2
#Clean up the output
cat followfollow2 | sed -e 's/\<screen_name>//g' | sed -e 's/\<in_reply_to_screen_name>//g' | sed -e 's/<//g' | sed -e 's/\///g' | sed 's/ //g' | sort -ui > followfollow3
#Dupecheck
comm -1 -2 allfollowers followfollow3 > dupe
cat followfollow3 | grep -v -f dupe > followfollow4
#Split into files with 1k each
split -l 1000 followfollow4 finallistpart
#cleanup
rm -rf follow*