Hey, nice article and useful tip!

I've tried using it on a random info page but the prefix `C-0` produces a message in the modeline "0 is undefined".

I am using vanilla Emacs 30.2 on Debian and also tested with `emacs -Q` (to exclude possible weirdnesses in my config). The documentation for the function `Info-copy-current-node-name` confirms that "With a zero prefix arg, put the name inside a function call to ‘info’."

I am a bit puzzled. What am I doing wrong?

Also, I wanted to comment in a blog to get that '00 vibe. :-)

Cheers!

Nice post, thanks for the tip!

Small tip: the `w` key does the exact same thing as `c` in an info page. Even the `C-0 w` produces the same behavior as `C-0 c`.

The advantage of `w` over `c`? The former does something similar in Dired where it adds the name of the object you are on to the kill-ring. In particular, it can copy visiting directory name from the header (credits to Prot for this one).