You are running Ubuntu Linux in AWS. You want to install R. How do you do this?
(These directions below were adapted from this link.)
Verify you have 1 GB of RAM. Run this command: sudo dmidecode -t 17 | grep Size
If you see 512 MB in the results of the above command, then you will not be able to get R installed. You will need a different AWS server -- a flavor with at least 1 GB of RAM. To upgrade the flavor to have more memory, see this posting. To add virtual memory (aka swap space), see this posting.
1. Run these four commands:
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
sudo add-apt-repository 'deb [arch=amd64,i386] https://cran.rstudio.com/bin/linux/ubuntu xenial/'
sudo apt-get update
sudo apt-get -y install r-base
2. a. Run this command to enter the R command prompt: sudo -i R
2. b. Note that the ">" sign below is just a reference. Do not type the ">" or space thereafter when you type the command below.
2. c. Enter a selection (e.g., 45 if you are in Texas). Press enter.
2. d. Run this command from the > prompt.
If there were no errors, then it is working.