What are some alternatives?
When comparing GNU Bourne Again SHell and DASH, you can also consider the following products
fish - The friendly interactive shell.
Litecoin - Litecoin is a peer-to-peer Internet currency that enables instant payments to anyone in the world.
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.
Xiki - Xiki makes the command line friendlier and more powerful.
Bitcoin - Bitcoin is an innovative payment network and a new kind of money.
win-bash - win-bash is a Windows port of the famous GNU bash (see GNU Bash homepage).