When you're logged into a remote machine with ssh, getting text on the clipboard of your local machine isn't straight forward. There are several ways to achieve this however, two of which I'll outline here.
Kitty
Using the excellent kitty terminal, getting text on your machine's clipboard is as easy as:
$ ssh example.com
$ echo hello world | kitty +kitten clipboard
That's it. Granted you have kitty installed on the server and you're
sshing from a kitty terminal, you're all set. Amazingly
simple. You can of course also put whole files on the clipboard like
so:
$ cat /etc/hosts | kitty +kitten clipboard
Using your mouse
Arguably an even easier approach, is simply using your mouse. I recommend configuring your terminal to put whatever you select with your mouse directly on the clipboard. No key presses, no Ctrl + c, just select the text with the mouse and it goes to the clipboard.
To get kitty terminal to do this,
I added the following to ~/.config/kitty/kitty.conf:
copy_on_select yes
While at it, I also set:
strip_trailing_spaces always
The last line ensures I don't get any trailing whitespace when selecting multiple lines (it's normally what you want, should've been the default if you ask me).
Final words
If you've set copy on select in your terminal, using the mouse is
fast, but you must take heed to copy only the characters you need. If
accuracy is needed, or you need more than a couple of lines, I
recommend using the first approach with kitty's clipboard
kitten.
