In Xcode 3, the line number of the current cursor location was displayed. I don\'t see this in Xcode 4. Is there a setting that will turn it on? Or a keypress that will giv
For Xcode 4 and higher, open the preferences (command+,) and check "Show: Line numbers" in the "Text Editing" section.
Xcode 9
XCode 8 and below