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dm(8) [debian man page]

DM(8)                                                       BSD System Manager's Manual                                                      DM(8)

NAME
dm -- dungeon master SYNOPSIS
ln -s dm game DESCRIPTION
dm is a program used to regulate game playing. dm expects to be invoked with the name of a game that a user wishes to play. This is done by creating symbolic links to dm, in the directory /usr/games for all of the regulated games. The actual binaries for these games should be placed in a ``hidden'' directory, /usr/lib/games/dm, that may only be accessed by the dm program. dm determines if the requested game is available and, if so, runs it. The file /etc/dm.conf controls the conditions under which games may be run. The file /etc/nogames may be used to ``turn off'' game playing. If the file exists, no game playing is allowed; the contents of the file will be displayed to any user requesting a game. FILES
/etc/dm.conf configuration file /etc/nogames turns off game playing /usr/lib/games/dm directory of ``real'' binaries /var/games/games.log game logging file SEE ALSO
dm.conf(5) HISTORY
The dm command appeared in 4.3BSD-Tahoe. SECURITY CONSIDERATIONS
Two issues result from dm running the games setgid ``games''. First, all games that allow users to run UNIX commands should carefully set both the real and effective group ids immediately before executing those commands. Probably more important is that dm never be setgid any- thing but ``games'' so that compromising a game will result only in the user's ability to play games at will. Secondly, games which previ- ously had no reason to run setgid and which accessed user files may have to be modified. BSD May 31, 1993 BSD

Check Out this Related Man Page

SNAKE(6)							   Games Manual 							  SNAKE(6)

NAME
snake, snscore - display chase game SYNOPSIS
/usr/games/snake [ -wn ] [ -ln ] /usr/games/snscore DESCRIPTION
Snake is a display-based game which must be played on a CRT terminal from among those supported by vi(1). The object of the game is to make as much money as possible without getting eaten by the snake. The -l and -w options allow you to specify the length and width of the field. By default the entire screen (except for the last column) is used. You are represented on the screen by an I. The snake is 6 squares long and is represented by S's. The money is $, and an exit is #. Your score is posted in the upper left hand corner. You can move around using the same conventions as vi(1), the h, j, k, and l keys work, as do the arrow keys. Other possibilities include: sefc These keys are like hjkl but form a directed pad around the d key. HJKL These keys move you all the way in the indicated direction to the same row or column as the money. This does not let you jump away from the snake, but rather saves you from having to type a key repeatedly. The snake still gets all his turns. SEFC Likewise for the upper case versions on the left. ATPB These keys move you to the four edges of the screen. Their position on the keyboard is the mnemonic, e.g. P is at the far right of the keyboard. x This lets you quit the game at any time. p Points in a direction you might want to go. w Space warp to get out of tight squeezes, at a price. ! Shell escape ^Z Suspend the snake game, on systems which support it. Otherwise an interactive shell is started up. To earn money, move to the same square the money is on. A new $ will appear when you earn the current one. As you get richer, the snake gets hungrier. To leave the game, move to the exit (#). A record is kept of the personal best score of each player. Scores are only counted if you leave at the exit, getting eaten by the snake is worth nothing. As in pinball, matching the last digit of your score to the number which appears after the game is worth a bonus. To see who wastes time playing snake, run /usr/games/snscore . FILES
/usr/games/lib/snakerawscores database of personal bests /usr/games/lib/snake.log log of games played /usr/games/busy program to determine if system too busy BUGS
When playing on a small screen, it's hard to tell when you hit the edge of the screen. The scoring function takes into account the size of the screen. A perfect function to do this equitably has not been devised. 4th Berkeley Distribution May 20, 1985 SNAKE(6)

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