emacs-option.txt

$ emacs --help
Usage: emacs [OPTION-OR-FILENAME]...

Run Emacs, the extensible, customizable, self-documenting real-time
display editor.  The recommended way to start Emacs for normal editing
is with no options at all.

Run M-x info RET m emacs RET m emacs invocation RET inside Emacs to
read the main documentation for these command-line arguments.

Initialization options:

--batch                     do not do interactive display; implies -q
--chdir DIR                 change to directory DIR
--daemon                    start a server in the background
--debug-init                enable Emacs Lisp debugger for init file
--display, -d DISPLAY       use X server DISPLAY
--no-desktop                do not load a saved desktop
--no-init-file, -q          load neither ~/.emacs nor default.el
--no-shared-memory, -nl     do not use shared memory
--no-site-file              do not load site-start.el
--no-site-lisp, -nsl        do not add site-lisp directories to load-path
--no-splash                 do not display a splash screen on startup
--no-window-system, -nw     do not communicate with X, ignoring $DISPLAY
--quick, -Q                 equivalent to:
                              -q --no-site-file --no-site-lisp --no-splash
--script FILE               run FILE as an Emacs Lisp script
--terminal, -t DEVICE       use DEVICE for terminal I/O
--user, -u USER             load ~USER/.emacs instead of your own

Action options:

FILE                    visit FILE using find-file
+LINE                   go to line LINE in next FILE
+LINE:COLUMN            go to line LINE, column COLUMN, in next FILE
--directory, -L DIR     add DIR to variable load-path
--eval EXPR             evaluate Emacs Lisp expression EXPR
--execute EXPR          evaluate Emacs Lisp expression EXPR
--file FILE             visit FILE using find-file
--find-file FILE        visit FILE using find-file
--funcall, -f FUNC      call Emacs Lisp function FUNC with no arguments
--insert FILE           insert contents of FILE into current buffer
--kill                  exit without asking for confirmation
--load, -l FILE         load Emacs Lisp FILE using the load function
--visit FILE            visit FILE using find-file

Display options:

--background-color, -bg COLOR   window background color
--basic-display, -D             disable many display features;
                                  used for debugging Emacs
--border-color, -bd COLOR       main border color
--border-width, -bw WIDTH       width of main border
--color, --color=MODE           override color mode for character terminals;
                                  MODE defaults to `auto', and
                                  can also be `never', `always',
                                  or a mode name like `ansi8'
--cursor-color, -cr COLOR       color of the Emacs cursor indicating point
--font, -fn FONT                default font; must be fixed-width
--foreground-color, -fg COLOR   window foreground color
--fullheight, -fh               make the first frame high as the screen
--fullscreen, -fs               make the first frame fullscreen
--fullwidth, -fw                make the first frame wide as the screen
--maximized, -mm                make the first frame maximized
--geometry, -g GEOMETRY         window geometry
--no-bitmap-icon, -nbi          do not use picture of gnu for Emacs icon
--iconic                        start Emacs in iconified state
--internal-border, -ib WIDTH    width between text and main border
--line-spacing, -lsp PIXELS     additional space to put between lines
--mouse-color, -ms COLOR        mouse cursor color in Emacs window
--name NAME                     title for initial Emacs frame
--no-blinking-cursor, -nbc      disable blinking cursor
--reverse-video, -r, -rv        switch foreground and background
--title, -T TITLE               title for initial Emacs frame
--vertical-scroll-bars, -vb     enable vertical scroll bars
--xrm XRESOURCES                set additional X resources
--parent-id XID                 set parent window
--help                          display this help and exit
--version                       output version information and exit

You can generally also specify long option names with a single -; for
example, -batch as well as --batch.  You can use any unambiguous
abbreviation for a --option.

Various environment variables and window system resources also affect
Emacs' operation.  See the main documentation.

Report bugs to bug-gnu-emacs@gnu.org.  First, please see the Bugs
section of the Emacs manual or the file BUGS.