Shells

What shell does /prog/ use?
I've only used bash, but I want to explore my options. So, which shell do you use, and, if you feel so inclined, why?

$ while read -rp "> " i; do echo -e '#include <stdio.h>\nint main(void){\n'>tmp; echo $i '}'|cat tmp - |gcc -x c -o tmp -; [ -e ./tmp ] && (./tmp; rm tmp); done
printf("lol\n");
lol
>