IntelliJ

#Open a File
Command + Shift + O

#Optimize imports in the current file
Control + Option + O
Control + Alt + O

#Duplicate a line 
Command + D

#Find in all files
Command + Shift + F

#Delete a line
Command + delete

#Format code
Option + Command + L
Alt + Command + L
Cntr + Alt + L

#Refactor rename
Function + Shift + F6

#Go to implementation
Command + B

#Go to terminal
Special + Alt + F12

### Special commands

#Open TODO list
Command + 6

#Close a tab
Command + Function + F4
Cntrl + Power + F4

#Extract to variable
Command + Option + V

#Move another tab
Alt+Right / Alt+Left
Shift+Command+[ / Shift+Command+]