$ ls -lha /usr/bin/rename
lrwxrwxrwx 1 root root 24 2006-03-03 15:46 /usr/bin/rename -> /etc/alternatives/rename
$ ls -lha /etc/alternatives/rename
lrwxrwxrwx 1 root root 16 2006-03-03 15:46 /etc/alternatives/rename -> /usr/bin/prename
$ dpkg -S /usr/bin/prename
perl: /usr/bin/prename