emacs file.txt: open the file.txt fileemacs file1.txt file2.txt: open both file1.txt and file2.txt filesemacs -nw file.txt: open the file.txt file in no-window modeemacs -q: start Emacs in no-config modeemacs -nw --no-init-file: start Emacs in no-window mode and without loading the init fileemacs -nw -Q: start Emacs in no-window mode and without loading any Lisp filesemacs -nw --eval "(split-window-horizontally)": start Emacs in no-window mode and split windows horizontallyemacs --daemon: start Emacs in background daemon modeemacsclient file.txt: open the file.txt file using Emacs clientemacsclient -a "" file.txt: if Emacs is not running, start Emacs and open the file.txt fileemacsclient -c file.txt: open the file.txt file in GUI modeemacsclient -t file.txt: open the file.txt file in terminal mode