Tip: get java home from R with rJava

September 2, 2009
By

[This article was first published on Romain Francois, Professional R Enthusiast, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

Assuming rJava is installed and works, it is possible to take advantage of its magic to get the path where java is installed:

$ Rscript --default-packages="methods,rJava" -e ".jinit(); .jcall( 'java/lang/System', 'S', 'getProperty', 'java.home' ) "
[1] "/opt/jdk/jre"

This is useful when you develop scripts that need to call a java program without assuming that java is on the path, or the JAVA_HOME environment variable is set, etc …

To leave a comment for the author, please follow the link and comment on their blog: Romain Francois, Professional R Enthusiast.

R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job.
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.



If you got this far, why not subscribe for updates from the site? Choose your flavor: e-mail, twitter, RSS, or facebook...

Tags: , ,

Comments are closed.

Search R-bloggers

Sponsors

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)