You started off late with ubuntu operating system and looking for shortcuts and how’s to, even i am new to ubuntu os and started playing with things recently, so i thought why not share things that i learn while moving step by step. Never mind if you do not know anything about ubuntu os and landed here accidentally, i have something to tell you about it, here we go.
What is ubuntu ?
You know windows very well, you might also have heard about linux OS – Ubuntu is free open source Linux OS for desktop users which is popular because of its ever growing community and as one of the best support available linux OS. Latest version in the market is ubuntu 11.10.
Why ubuntu 11.10 ?
Security
whatever security patches you apply on windows operating system, it is always prone to malware and virus attacks. Windows 7 which is considered as secure as compared to its predecessors is not even able to stop malware attacks. With ubuntu 11.10 , you are definitely safe when we talk about malwares.
Price
While windows 7 is available at cost of 150$ or less. Ubuntu is free that means you have to pay zero.
Version Upgrades
Whenever there is any patch upgrades or a os updates, you have to burn lot of your calorie to upgrade windows operating system, for example it will take around 8 hours to upgrade windows 7 from existing installed os, while with ubuntu you will complete it in one hour.
Compatibility Issues
you might have heard about several hardware compatibility issues with linux, with ubuntu 11.10 you need not to worry about any chip or card level compatibility issues, though exceptions are always there but who said windows does not have hardware compatibility issues.
that was all what i know about ubuntu as of now, coming back to ubuntu 11.10 shortcuts which are really helpful at times.
[CTR] + W - If you want to close current window
[CTR] + Q – if you have opened any application and would like to close it, then this shortcut is for you.[CTR] + [ALT] + D – If you want to quickly minimise all opened windows.
[Super] + A/F/M – Shortcut Opens Dash Lens for particular Application/ Files / Music.
[CTR] + [TAB] – if you want to Switch Between multiple Lenses.
[CTR] + [ALT] + NUMPADX – Using this shortcut you can position the image in the specified part of the desktop screen.
[CTR] + [ALT] + ARROW KEY – Shortcut Navigate to Workspace in that direction.
[CTR] + [ALT] + [SHIFT] + [ARROW KEY] – If you want to Move the selected opned window to workspace in that specified direction.[CTR] + [ALT] + [BACKSPACE] – Shortcut Restart the current session .
[CTR] +[H] - Show all hidden files in Nautilus quickly.


very helpful tips , thanks for posting