How to copy and paste lines in Nano on OSX I would like to copy and paste multiple lines in the command line text editor nano on OSX Mountain Lion 10.8.5

Alt-6 and Ctrl-U do not work as on other platforms.
The problem is that in Mac Terminal, the alt key doesn't work unless you change the Terminal Preferences to enable Use Option as Meta key. Then alt+6 will work properly to copy.

Another choice is to use the ESC key instead of alt. So do ESC+6.