here is a list of all the console commands that I know of:

The default fov of 90 can be changed by typing set fov (number). It is capped at 83 fps but can be changed with set cl_maxfps (number). set m_noaccel (number) for mouse acceleration and the last one that I know off is noclip which is basically what it says.

NEW ONES

I have found out new ones for this game and Gravity bone.

/give all (you can get guns and stuff from gb) /godmode (can't die)