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#!/bin/bash
#
# external_apt_repo_example
main() {
# Bypass the APT caching proxy that is built into the execution environment.
# It's configured to only allow access to the stock Ubuntu repos.
sudo rm -f /etc/apt/apt.conf.d/99dnanexus
# Set up access to the external APT repository.
echo 'deb http://cran.rstudio.com/bin/linux/ubuntu precise/' | sudo tee /etc/apt/sources.list.d/rstudio.list
# Trust the signing key for this repo.
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E084DAB9
# Reference: http://cran.rstudio.com/bin/linux/ubuntu/README.html
#
# Alternatively, you can save your key to a file somewhere in your resources
# directory, e.g. resources/tmp/my-signing-key.gpg, then load it at runtime
# as follows:
#
# sudo apt-key add /tmp/my-signing-key.gpg
sudo apt-get update --yes
sudo apt-get remove --auto-remove --yes r-base
sudo apt-get install --yes r-base
# Verify that a new version of R was installed
R --version
}