x11docker:tldr:b3cd2

The command "x11docker --desktop ${x11docker-xfce}" is used to run a Docker container with a graphical desktop environment based on XFCE.

Let's break down the command:

• "x11docker" is the command-line tool used to run Docker containers with X11 support (displaying graphical applications).
• "--desktop" is an option or flag used with x11docker to specify that a graphical desktop environment is desired.
• "${x11docker-xfce}" is a variable in this command. The use of curly brackets and the dollar sign indicates that this is a variable placeholder, and its value will be substituted when the command is executed.
  • The variable name "x11docker-xfce" suggests that it might hold the name or ID of a Docker image/container with an installed XFCE desktop environment.
  • The "${x11docker-xfce}" variable is being used to specify which Docker image/container to use for the XFCE desktop environment.

So, this command is asking x11docker to start a Docker container with a graphical desktop based on XFCE. The specific XFCE image or container to use is determined by the value in the variable "${x11docker-xfce}".