es is described as 'Es is an extensible shell. The language was derived from the Plan 9 shell, rc, and was influenced by functional programming languages, such as Scheme, and the Tcl embeddable programming language' and is a Shell in the os & utilities category. There are more than 25 alternatives to es for a variety of platforms, including Linux, Mac, BSD, Windows and Cygwin apps. The best es alternative is fish, which is both free and Open Source. Other great apps like es are GNU Bourne Again SHell, Zsh, Nu Shell and Elk Shell.
RazzShell is a Unix shell built with customization in mind, offering command alias support, colorful output, and environment variable handling. Developed in C, it’s designed for Unix/Linux systems and licensed under the MIT license.
KtSh is the most popular Self-Hosted alternative to es.
