for f in a.a.a.b a.a.b.a a.b.a.a b.a.a.a; do
for ip in 1 2 4 8 16 32 64 128; do
s=$(echo "$f" | sed -e "s/a/0/g;s/b/$ip/g")
echo $s|tr . \\n|sed -e 's/.*/echo "obase=2;=10;&amp;"|bc/g' | bash | xargs printf "%08d"
echo " $s"
done
done | grep --color=always 1|textimg -s #シェル芸