How can I interrupt a running code in R with a keyboard command?

Self Answer (pretty much summary of other’s comments and answers):

• In RStudio, Esc works, on windows, Mac, and ubuntu (and I would guess on other linux distributions as well).

• If the process is run in say ubuntu shell (and this is not R specific), for example using:

    Rscript my_file.R
  

  Ctrl + c kills the process

  Ctrl + z suspends the process

• Within R shell, Ctrl + C kills helps you escape it