sbcl:tldr:aede3

SBCL, which stands for Steel Bank Common Lisp, is an implementation of the Common Lisp programming language. It is a high-performance compiler and runtime system, providing a robust and efficient environment for developing Lisp applications.

When you run the command "sbcl" in the terminal, it starts the SBCL interpreter or REPL (Read-Eval-Print Loop), which allows you to interactively enter and evaluate Lisp expressions. It provides a prompt where you can type in Lisp code and see the results of evaluating that code immediately.

The SBCL environment provides various features that aid in Lisp development, including a debugger, a profiler, and the ability to compile Lisp code into efficient machine code. It also supports loading and executing Lisp source files, allowing you to write larger Lisp programs and run them from the REPL.

In summary, running the "sbcl" command starts the SBCL Lisp interpreter, providing an interactive environment for working with the Common Lisp programming language.