gotty:tldr:dfed2

This command is using the tool called "gotty" with the "-w" flag to serve a web-based terminal for a specific shell defined by the ${shell} variable.

Here's an explanation of the parts of the command:

• gotty: It is an open-source tool that allows users to share a terminal session through a web browser. It starts a web server and redirects the input and output of a shell to it.
• -w: This flag enables the WebSocket mode in gotty, which establishes a two-way communication channel between the terminal and the browser.
• ${shell}: It represents a placeholder for a shell command or shell variable. The value of this variable is used to define which shell should be used when serving the web-based terminal.

By running this command and replacing ${shell} with an appropriate shell command or variable, you can start a web server that serves a terminal accessible through a web browser. This can be useful for remote collaboration or accessing a shell session from a device that doesn't have a terminal installed.