If a filename is given, a log of the game is written onto that file. If the -a flag is given before the filename, that file is appended to, not truncated.
The game will ask you what length game you would like. Valid responses are `short', `medium', and `long'. You may also type `restart', which restarts a previously saved game. You will then be prompted for the skill, to which you must respond `novice', `fair', `good', `expert', `commadore', or `impossible'. You should normally start out with a novice and work up.
In general, throughout the game, if you forget what is appropriate the game will tell you what it expects if you just type in a question mark.
*fabandon *fcapture
*fcloak *fup/*fdown
*fcomputer request; ... *fdamages
*fdestruct *fdock
*fhelp *fimpulse course distance
*flrscan *fmove course distance
*fphasers *fautomatic amount
*fphasers *fmanual amt1 course1 spread1 ...
*ftorpedo course [*fyes] angle/*fno
*fram course distance *frest time
*fshell *fshields *fup/*fdown
*fsrscan [*fyes/*fno]
*fstatus *fterminate *fyes/*fno
*fundock *fvisual course
*fwarp warp_factor