How to make keyboard work like OSX System Wide?
If you install the xautomation package, you can add a command in System/Preferences/Keyboard Shortcuts/Custom like:
xte "keyup Meta_L" "keyup c" "keydown Control_L" "key c" "keyup Control_L"
and map that to Meta-C.
Alternative Solution:
Install AutoKey (apt-get install autokey-gtk) and set a phrase to:
Phrase Text: <ctrl>+C (actually type out the <ctrl>+ here)
Paste Using: Keyboard
Abbreviation: None
Hotkey: <super>+v
Window Filter: None
Since Ubuntu 14 you can use GNOME Tweaks:
sudo apt install gnome-tweaks # formerly gnome-tweak-tool
Then, look for Tweak Tool > Keyboard & Mouse > Additional Layout Options > Alt/Win key behavior.
And check: Ctrl is mapped to Win keys and usual Ctrl keys.
There is a way to map Ctrl to Win/Super key:
go to system->preferences->keyboard,
open tab Layouts,
click Options...,
open Alt/Win key behavior,
and select Control is mapped to Win keys
And for console there is a forum post how to do that here.
For more digging check general Linux keyboard HOWTO here.
regards