What are some alternatives?
When comparing fshell and DASH, you can also consider the following products
GNU Bourne Again SHell - Bash is the shell, or command language interpreter, that will appear in the GNU operating system.
Litecoin - Litecoin is a peer-to-peer Internet currency that enables instant payments to anyone in the world.
fish - The friendly interactive shell.
zsh - The Z shell (Zsh) is a Unix shell that can be used as an interactive login shell and as a powerful command interpreter for shell scripting.
Bitcoin - Bitcoin is an innovative payment network and a new kind of money.
rc - a shell - This is a reimplementation for Unix, by Byron Rakitzis, of the Plan 9 shell.