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