Installing self-compiled packages

A script I keep reinventing again and again: installing those binary packages from a self-compiled package where the other (presumably older) version is already installed on the system. I don't have time to make this generic right now, but still...

for i in *deb; do 
    echo ${i%%_*};
done | xargs dpkg -l 2>/dev/null \
    | buthead 5 \
    | cut -f 3 -d \  \
    | while read p; do
         echo  ${p}_4.2.3-1vbi_i386.deb;
      done \
    | xargs sudo dpkg -E -i

Update: I don't know how I managed to see -E in dpkg's manpage but miss -O which is right above it. Thanks, Guillem. Josh: Either my english is just not good enough, or the manpage of debi is from a slightly different reality. I just can't make out what, exactly, the tool tries to do. (Ok, since dpkg -iOE does exactly what I want anyway I didn't try very hard either.)

Update: RTFM.