sed file processing?

Jude DaShiell <[email protected]>
Newsgroups gmane.editors.sed.user
Message-ID <[email protected]>
cut here.
#!/usr/local/bin/bash
# file: sp.sh
grep "^From:" /home/jdashiel/mail/probably-spam | cut -d \  -f 1-8 - >/home/jdashiel/.spamassassin/rf
cd /home/jdashiel/.spamassassin
sed -e 's/^/blacklist-/' rf
cut here.
When I run this script, the output sounds exactly as I'd like however the 
rf file remains untouched.  Could that be because the file is in a hidden 
directory?  If so, I can fix that problem.
 jude <[email protected]>
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