xvfb-run
Run commands in virtual X server
TLDR
Run command in virtual X server
$ xvfb-run [command]
Auto select server number$ xvfb-run -a [command]
Pass server args$ xvfb-run -s "-screen 0 1024x768x24" [command]
SYNOPSIS
xvfb-run [OPTIONS] COMMAND
DESCRIPTION
xvfb-run runs a command in a virtual X server environment using Xvfb (X Virtual Frame Buffer). This allows running graphical applications on systems without a display.
The tool is useful for automated testing, CI/CD pipelines, and headless server environments.
PARAMETERS
-a, --auto-servernum
Try to find free server number automatically-s, --server-args ARGS
Arguments passed to Xvfb server-n, --server-num NUM
Use specified server number-e, --error-file FILE
Write Xvfb errors to file-f, --auth-file FILE
Use specified auth file
CAVEATS
Xvfb must be installed. Some applications may behave differently in virtual X. Performance may vary for GPU-intensive applications.