Yo, I think Gottfried wants to copy the commands suggested by Guix on stdout, not their own shell command history. Correct me if I'm wrong.
The answer will depend entirely on which terminal application you use. Some might not offer such an option at all. I know that in Termite, you can enter a vim-like selection mode with C-S-Space. Alas, I'm fairly certain than Gottfried isn't using Termite. My only other suggestion would be to open an M-x shell in emacs, but if you're not comfortable in Emacs, that's yet another learning curve. Kind regards, T G-R Sent on the go. Excuse or enjoy my brevity.
