sl:tldr:54a2b
sl: Let a steam locomotive run through your terminal.
$ sl
try on your machine
The sl command is a fun little utility that displays a moving train animation on the terminal. It is often referred to as the "steam locomotive" command.
When you execute the sl command, it will animate a train moving across the terminal screen, leaving a trail of smoke behind it. It is purely a joke command, not serving any practical purpose. It was initially developed as a prank to teach beginners the ls command (which lists files and directories in a directory), as the l and s keys are adjacent on a keyboard.
However, due to its popularity and humorous nature, it has become a well-known command in the UNIX/Linux community. It does not have any useful application, but it can provide a brief moment of entertainment for users.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.