Create installer_unix.sh

installer_unix.sh

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+#!/bin/sh
+
+# Installation steps for R and dependencies for devtools on Unix
+
+sudo apt-get install r-base
+
+sudo apt install  libssl-dev
+sudo apt install  libgit2-dev
+sudo apt install  libxml2-utils
+sudo apt install  libxml2-dev
+sudo apt-get install libcurl4-openssl-dev
+
+sudo apt-get install git
+
+
+# optionally update R to latest version later
+#   https://askubuntu.com/questions/1237102/problem-installing-r-4-0-on-ubuntu-18-04
+# sudo apt remove r-base
+# sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
+# sudo add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu bionic-cran40/'
+# sudo apt update
+# sudo apt install r-base
+
+# Install R Studio
+sudo apt-get install gdebi-core
+wget https://download2.rstudio.org/server/xenial/amd64/rstudio-server-1.3.1093-amd64.deb
+sudo gdebi rstudio-server-1.3.1093-amd64.deb
+
+# Start RStudio server
+rstudio-server start
+
+# Open RStudio server by opening Firefox browser and typing in localhost:8787