xvfb-run:tldr:167d1

The command "xvfb-run" is a wrapper that allows executing a command within a virtual X server environment. This is particularly useful for running graphical applications or commands that require access to a display, without actually having a physical display attached. The syntax for the command is: xvfb-run ${command} The "${command}" part should be replaced with the actual command you want to run within the virtual X server environment. When the "xvfb-run" command is executed, it starts a new virtual X server using the Xvfb tool. This X server is a virtual display that allows graphical operations to be performed. The specified "${command}" is then executed within this virtual X server environment, which means it has access to a display, even though there might not be a physical display connected. For example, if you want to run the command "firefox" within the virtual X server environment, you would use: ``` xvfb-run firefox