Maya

CAD / 3D
Transform Tools
Q Select tool Win mac Linux
W Move (Translate) tool Win mac Linux
E Rotate tool Win mac Linux
R Scale tool Win mac Linux
T Show manipulator (last used) Win mac Linux
G Repeat last operation Win mac Linux
Display Modes
1 Low quality display Win mac Linux
2 Medium quality display Win mac Linux
3 High quality display (smooth) Win mac Linux
4 Wireframe display Win mac Linux
5 Shaded display Win mac Linux
6 Shaded with textures Win mac Linux
Viewport Navigation
F Frame / focus on selected object Win mac Linux
A Frame all objects in scene Win mac Linux
Objects & File
CTRL+D Duplicate selected object Win Linux
+D Duplicate selected object mac
CTRL+G Group selected objects Win Linux
+G Group selected objects mac
DEL Delete selected object Win mac Linux
CTRL+Z Undo Win Linux
+Z Undo mac
CTRL+S Save scene Win Linux
+S Save scene mac