Install R and RStudio on Ubuntu 19.10 with essential libraries for data science. Based on pachamaltese/r_ubuntu_17_10.sh (for Ubuntu 17.10). Note: You need to make sure the default library location - /usr/local/lib/R/site-packages - is writable .

r_ubuntu.sh

# Add repo to install the last R
sudo apt install apt-transport-https software-properties-common
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
sudo add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu eoan-cran35/'

# Install R
sudo apt update
sudo apt install gdebi libxml2-dev libssl-dev libcurl4-openssl-dev libopenblas-dev r-base r-base-dev

# Install RStudio
cd ~/Downloads
wget https://download1.rstudio.org/desktop/bionic/amd64/rstudio-1.2.5001-amd64.deb
sudo gdebi rstudio-1.2.5001-amd64.deb
# I really don't know if this is necessary anymore. 
test -r ~/.bash_profile && printf '\nexport QT_STYLE_OVERRIDE=gtk\n' | sudo tee -a ~/.bash_profile
test -r ~/.zshrc && printf '\nexport QT_STYLE_OVERRIDE=gtk\n' | sudo tee -a ~/.zshrc
printf '\nexport QT_STYLE_OVERRIDE=gtk\n' | sudo tee -a ~/.profile

# Install common packages
R --vanilla << EOF
install.packages(c("tidyverse","data.table","dtplyr","devtools","roxygen2","bit64","readr"), repos = "https://cran.rstudio.com/")
q()
EOF

# Install TDD packages
R --vanilla << EOF
install.packages("testthis")
q()
EOF

# Export to HTML/Excel
R --vanilla << EOF
install.packages(c("htmlTable","openxlsx"), repos = "https://cran.rstudio.com/")
q()
EOF

# Blog tools
R --vanilla << EOF
install.packages(c("knitr","rmarkdown"), repos='http://cran.us.r-project.org')
q()
EOF
sudo apt install python-pip
sudo apt install python3-pip
sudo -H pip install markdown rpy2==2.7.1 pelican==3.7.1
sudo -H pip3 install markdown rpy2==2.9.3 pelican==3.7.1 

# PDF extraction tools
sudo apt install libpoppler-cpp-dev default-jre default-jdk r-cran-rjava
sudo R CMD javareconf
R --vanilla << EOF
library(devtools)
install.packages("pdftools", repos = "https://cran.rstudio.com/")
install_github("ropensci/tabulizer")
q()
EOF

# TTF/OTF fonts usage
sudo apt install libfreetype6-dev
R --vanilla << EOF
install.packages("showtext", repos = "https://cran.rstudio.com/")
q()
EOF

# Cairo for graphic devices
sudo apt install libgtk2.0-dev libxt-dev libcairo2-dev
R --vanilla << EOF
install.packages("Cairo", repos = "https://cran.rstudio.com/")
q()
EOF

# Texlive for Latex/knitr
sudo apt -y install texlive
sudo apt -y install texlive-latex-recommended texlive-pictures texlive-latex-extra

You perhaps have to change the last part of sudo add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu eoan-cran35/' in relation of your ubuntu version. If you don't have the last version —eoan— will fail.

My Ubuntu version is 19.10, What was I supposed to do?
How can I find a related repository link?

@mberneti I just put it. Your version it eoan.

@luispuerto oops ...
Thank you.