nano editor on OS X - How to type M-U for undo?

nano
GreenSaguaro picture GreenSaguaro · Mar 3, 2016 · Viewed 26.9k times · Source

I am using nano 2.5.3 on OS X Yosemite, and I see commands at the bottom such as:

M-U Undo M-E Redo

So far, I have not been able to figure out which key or keys that M is referring to. What would be M on OS X?

Answer

Wing Poon picture Wing Poon · Jan 15, 2017

Hit ESC, then U (i.e. one after another, not together).

Note that UNDO is not supported in the default MacOS provided nano (V2.0.6) -- to get the latest version, simply do

brew install homebrew/dupes/nano

Related questions

Copy text from nano editor to shell

Is it possible to copy text from a file, opened with nano, to the shell? I have a text file, and I want to copy several lines to the console, but I cannot find a keyboard shortcut to copy the …

Read More
nano error: Error opening terminal: xterm-256color

After the installation of OSX Lion, I tried to: nano /etc/apt/sources.list But I get this error: Error opening terminal: xterm-256color If I try to switch terminal.app preferences to open terminal windows in "xterm color" instead …

Read More
jump to line X in nano editor

Does the Nano minimal text editor have a keyboard shortcut feature to jump to a specified line? Vim provides several analogs.

Read More