Clean install Ubuntu

Ubuntu Linux is a great programming environment but it’s more difficult to initially set up than macOS or Windows.
Bash, Linux, reformat, Ubuntu

Install dependencies

sudo apt-get install g++ gfortran libcurl4-openssl-dev libssh2-1-dev libssl-dev libxml2-dev

Install Git

curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.deb.sh | sudo bash
sudo apt-get install git git-lfs
git lfs install

Install R

# Add the CRAN GPG key, which is used to sign the R packages for security:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E084DAB9

# Append the CRAN repository to `sources.list`:
sudo sh -c 'echo "deb https://cran.rstudio.com/bin/linux/ubuntu/ trusty/" >> /etc/apt/sources.list'

# Get latest version of R:
sudo apt-get update
sudo apt-get install r-base

Applications

Preferences

Reverse scrolling

Create a file named .Xmodmap:

pointer = 1 2 3 5 4 6 7 8 9 10 11 12

Note that 4 and 5 are flipped here – this enables reverse vertical scrolling.