Install Emacs on Elementary OS

install_emacs.sh

#!/bin/bash -e

sudo apt update -y
sudo apt install software-properties-common
sudo add-apt-repository ppa:ubuntu-elisp/ppa -y
sudo apt update && sudo apt install emacs25

# emacs25.desktop:
cp /usr/share/applications/emacs25.desktop ~/.local/share/applications
# Replace the Exec line with: Exec=Exec=/usr/bin/env XLIB_SKIP_ARGB_VISUALS=1 emacsclient -a '' -n -c %F

# defaults.list
cp /usr/share/applications/defaults.list ~/.local/share/applications
# Replace gedit with emacs25.desktop
# Modify System Settings -> Applications -> Defaults -> Emacs