R(1) - a language for data analysis and graphics
-h, --help
       Print short help message and exit
       Print version info and exit
       Specify encoding to be used for stdin
--encoding ENC

RHOME  Print path to R home directory and exit
--save Do save workspace at the end of the session
       Don't save it
       Don't read the site and user environment files
       Don't read the site-wide Rprofile
       Don't read the user R profile
       Do restore previously saved objects at startup
       Don't restore previously saved objects
       Don't restore the R history file
       Don't restore anything
       Combine --no-save, --no-restore, --no-site-file, --no-init-file and --no-environ
       Don't use readline for command-line editing
       Set max size of protect stack to N
-q, --quiet
       Don't print startup message
       Same as --quiet
       Make R run as quietly as possible
       Force an interactive session
       Print more information about progress
-d, --debugger=NAME
       Run R through debugger NAME
       Pass ARGS as arguments to the debugger
-g TYPE, --gui=TYPE
       Use TYPE as GUI; possible values are 'X11' (default) and 'Tk'.
       Specify a sub-architecture
--args Skip the rest of the command line
-f FILE, --file=FILE
       Take input from 'FILE'
       Execute 'EXPR' and exit