Having performed a rna-seq analysis, I would like to create a venn diagram. I use the 2DVenn.R command from the Bash, as follows:

./2DVenn.R -a 551 -b 565 -i 723

I note that have installed the required backages and made the 2DVenn.R command executable using:

chmod +x 2DVenn.R

But, I am receiving the following errors:

./2DVenn.R: line 2: syntax error near unexpected token `(' ./2DVenn.R: line 2: `R version 3.6.3 (2020-02-29) -- "Holding the Windsock"'

I am new in using the Bash, please help me with this error. Thank you.