R programming is a free and Open source package used for data analysis. I will show you two ways to find which version of R is installed in your system
Using R/R studio
Open R or R studio and type
version or R.Version()
This will bring you the following details
platform x86_64-redhat-linux-gnu arch x86_64 os linux-gnu system x86_64, linux-gnu status major 3 minor 5.1 year 2018 month 07 day 02 svn rev 74947 language R version.string R version 3.5.1 (2018-07-02) nickname Feather Spray
Using Terminal in Linux
Open Terminal and Type in command line
you will get the following result
[sulthan@sulthan-acer ~]$ R --version R version 3.5.1 (2018-07-02) -- "Feather Spray" Copyright (C) 2018 The R Foundation for Statistical Computing Platform: x86_64-redhat-linux-gnu (64-bit) R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under the terms of the GNU General Public License versions 2 or 3. For more information about these matters see http://www.gnu.org/licenses/.
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