-y        - Easy
-R        - Read-only
-r        - Recover from a system crash
-b        - Edit binary
-c cmd    - Execute ex cmd
-E        - Start in improved ex mode (extended regexps)
-m        - Turn of write options (buffers will be not modifiable)
-o/O[N]   - Open files in separate vindows (horizontal/vertical split).
            Preallocate N windows (if N specified).
-p        - Open files in separate tab pates -//-.
            Note: wild-cards can be used like *.cpp

+ sometimes could be expressed as "-c "

+n        - Open file at line number n
+/pattern - open file at first occurence of pattern