DOTA2 console commands

The most useful command here is probably dota_force_right_click_attack 1
More will be added as they come. The essentials DO NOT require sv_cheats
and as far as I know do not violate any official competition rules.

Turn on console

In steam, right cilck on "Dota 2" > properties
Click on Set Launcher Options and add -console
Save and start game. The default hotkey is ```` (backtick)

Other Launcher Options

Other useful SET LAUNCH OPTIONS

-window to open in windowed mode
-w <pixels> to set window width
-h <pixels> to set window height
-noborder for borderless window
concatenate multiple options with a space. (like example below)
Crashing when alt tab? Set options: -window -w 1920 -h 1080 -noborder -console

Essential

For what these do, see the list below.

dota_disable_range_finder 0
dota_player_units_auto_attack 0
dota_force_right_click_attack 1

Various commands (original post)

List from the dev.dota2.com (where it was copied from GosuGamers)

dota_minimap_hero_size 700 - will make the size of the hero on the minimap as big as you want. (Default 600)
dota_disable_range_finder 0 - By default you only see the range of spells when you hover your mouse on the spell
icon. With this set to 0 it will show you the range when you actually click to use
the spell on someone. (Default 1)
dota_always_show_player_names - 0 will disable, 1 will enable player name on top of health bars. (Default 0)
dota_hud_healthbars - 1 will make your health smoother without the lines you see on health bars
(the blocks in the health that divides at around 200 life per block).
3 will enable it back on and 0 will make all health bars disappear,
the others do nothing apparently. (Default 3)
dota_unit_use_player_color - Colors player either individually or an unified color by team.
1 Enables individual colors, 0 Team color. (Default 1)
dota_player_units_auto_attack - 0 will stop auto-attacking and only attacks IF you click to attack, whereas 1 will
auto-attack at all possible times. Default = 1.
dota_camera_accelerate 49 - Make the camera stop exactly where you want it, 0 will make you unable to move
your camera. (Default unknown)
dota_force_right_click_attack 1 - Enable right-click deny (your creeps HP must be <50%) (Default 0)
dota_health_per_vertical_marker 250 - This will determine how much health you wish to divide the vertical lines
by. In the demonstration value it will draw a line each 200 health, but you
can choose your own value. (default 250)

Opposing team color combination:
The RGB for the enemy team is dota_enemy_color_r, dota_enemy_color_g, dota_enemy_color_b
(ie: dota_enemy_color_r 1). Below are some colors the enemy team can be:

R, G, B all 0: Black
R, G, B all 1: White
R 1, G 0, B 0: * Red
R 1, G 1, B 0: Yellow
R 1, G 0, B 1: Fuchsia
R 0, G 1, B 1: Cyan

The RGB for the friendly team is dota_friendly_color_r, dota_friendly_color_g, dota_friendly_color_b (ie: dota_friendly_color_r 1). Same colors as above.

To change Avatar

Get into a practice game with bots and type one of the following command in console
and then leave the match:

dota_set_avatar 0 - Default
dota_set_avatar 1 - Crystal Maiden
dota_set_avatar 2 - Kunkka
dota_set_avatar 3 - Faceless Void
dota_set_avatar 4 - Furion
dota_set_avatar 5 - Yurnero
dota_set_avatar 6 - Bloodseeker
dota_set_avatar 7 - Lich
dota_set_avatar 8 - Axe
dota_set_avatar 9 - Pudge
dota_set_avatar 10 - Puck