How does Mac os x nano copy a row of M-6 keys

  question, vim

Which shortcut key does Mac os x use to open nano to copy the current row (which can be pasted into Safari)?

nano id_rsa.pub

Presscontrol+k, cut, but there is no paste in Safari.
One key isM-6ThisMIt refers tooptionKey?
However, it cannot be copied to Safari at all. Actually, it was not copied successfully. How can I be innanoCopy the current line to the cut version in?

图片描述

Can I use VIM?

"*YYou can copy the current entire line to the clipboard