なお
$ time emacs
Command 'emacs' not found, but can be installed with:
snap install emacs # version 29.4, or
apt install emacs-gtk # version 1:27.1+1-3ubuntu5.2
apt install emacs-lucid # version 1:27.1+1-3ubuntu5.2
apt install emacs-nox # version 1:27.1+1-3ubuntu5.2
apt install e3 # version 1:2.82+dfsg-2
apt install jove # version 4.17.3.6-2
See 'snap info emacs' for additional versions.
real 0m0.082s
user 0m0.058s
sys 0m0.027s