# emacsclient > Open files in an existing Emacs server. > See also `emacs`. > More information: . - Open a file in an existing Emacs server (using GUI if available): `emacsclient {{path/to/file}}` - Open a file in console mode (without an X window): `emacsclient --no-window-system {{path/to/file}}` - Open a file in a new Emacs window: `emacsclient --create-frame {{path/to/file}}` - Evaluate a command, printing the output to stdout, and then quit: `emacsclient --eval '({{command}})'` - Specify an alternative editor in case no Emacs server is running: `emacsclient --alternate-editor {{editor}} {{path/to/file}}` - Stop a running Emacs server and all its instances, asking for confirmation on unsaved files: `emacsclient --eval '(save-buffers-kill-emacs)'`