I found the following variations on the use of "command line" and "shell" in computing and wonder which are correct and how to use them appropriately. Command line: is it "at the command line" or ...
What is the correct way to specify the operating system you are targeting or using? Is a program running on or under an operating system (OS)? Is a machine running an OS or under an OS?
The NY Times uses both "on Mac OS X" and "in Mac OS X". Can someone explain which one seems more appropriate if there is no difference?