Dennis,
R does that for you already as it needs to know it for rJava too.
On my (Linux) box:
edd@rob:~$ R CMD config JAVA
/usr/lib/jvm/default-java/bin/java
edd@rob:~$ R CMD config JAVA_HOME
/usr/lib/jvm/default-java
edd@rob:~$
You could also do the equivalent of `which` or `type -p` from R:
R> Sys.which("javac")
javac
"/usr/bin/javac"
R> Sys.which("javacdoesnotexist")
javacdoesnotexist
""
R>
Hope this helps, Dirk
--
http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
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