How to install java locally - no root - on linux, if possible?
Oracle offers JRE and JDK also as *.tar.gz for Linux. I usually had success just downloading such a package, untarring/unzipping it (tar -xzvf jdk-8u25.tar.gz
) and then running it, using the absolute path.
It is quite easy...
Download the JDK as a tarball from Oracle (a simple google search will yield the link).
Unzip it somewhere in your $HOME (for instance, $HOME/jdk
).
Set JAVA_HOME
to the path of the root JDK install; then prepend $JAVA_HOME/bin
to your PATH
.
And off you go.
Here I have a particular setting insofar as I run three different major versions of the JDK: 6, 7, 8. For instance, here is my source file for setting the current shell to use Java 8:
$ cat ~/.jdk/8
export JAVA_HOME=/opt/sunjdk/1.8/current
export PATH="$JAVA_HOME/bin:$PATH"
And in /opt/sunjdk/1.8
(given that /opt/sunjdk
is writable by my user hence I don't need to be root
):
$ ls -l /opt/sunjdk/1.8/* -d
lrwxrwxrwx 1 fge fge 11 Oct 30 10:09 /opt/sunjdk/1.8/current -> jdk1.8.0_25
drwxr-xr-x 1 fge fge 274 Mar 18 2014 /opt/sunjdk/1.8/jdk1.8.0_05
drwxr-xr-x 1 fge fge 274 Sep 18 02:44 /opt/sunjdk/1.8/jdk1.8.0_25
(and yes, I was root
to begin with so as to grant write permissions for /opt/sunjdk
to "my" user; if you have no such liberty, just create another directory in your home)