Dec 4, 2017 · To check which version of Java is installed, follow this procedure: -Open a Linux command prompt. -Enter the command java -version.-If Java version is installed on your system, you see a Java installed response. Check the version number in the message.-If Java is not installed on your system, or the version of Java is earlier than 1.6, use the ...

Jun 6, 2017 · which -a java | xargs -I{} echo "echo {};{} -version;echo" | sh. This will print the path to each of the java executables found in the system path, as well as the version information of that executable, and separate entries with a newline. It works like so: Pipe the output from which …

Determining the Java version only using grep with Perl-style regex can be done like this: java -version 2>&1 | grep -oP 'version "?(1\.)?\K\d+' This will print the major version for Java 9 or higher and the minor version for versions lower than 9, for example 8 for Java 1.8 and 11 for Java 11.0.4. It can be used like this:

Oct 2, 2019 · Another best way to find Java folder path is to use alternatives command in Fedora Linux (I know its for Ubuntu but I hit this post from google just by its headline). Just want to share incase people like me looking for answers for fedora flavour.

Apr 6, 2016 · I need a bash line to check if java version currently installed is Oracle's or OpenJDK. A one-liner by parsing the output of the java -version command: java -version java Oracle output: java version "1.7.0_80" Java(TM) SE Runtime Environment (build 1.7.0_80-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode) java OpenJDK Output:

Feb 16, 2023 · Seems like java -version used to be a way to do this, but no longer. Adding to the complexity, you can also supposedly get your Java version info from Control Panel > Programs > Java > About. For me, that shows Version 8. That's despite java -version showing version 11.0.15. And it doesn't change even if I point my JAVA_HOME to JDK 11.

Feb 26, 2022 · Check "which java", you will see the full path of the java executable. With good probability, you will find close the jdk 11 installation folder. Take that path instead and run it as "full path/java --version" –

I want to fetch the Java version in Linux in a single command. I am new to awk so I am trying something like . java -version|awk '{print$3}' But that does not return the version. How would I fetch the 1.6.0_21 from the below Java version output?

Oct 25, 2016 · The which command gives you the path to the java binary: which java But if it is only a symlink (e.g. used by alternatives) this will not get your the real path to the binary. You can either list where the symlink points to with with ls -l: ls -l `which java` which for me outputs /usr/bin/java -> /etc/alternatives/java

Oct 31, 2023 · No, there is no such thing as "JRE 1.42". The output means you're using Java 7 update 45. Java is installed in such a way that it overrides what the alternatives mechanism provides, so the output of the alternatives command is not important. You also have the Eclipse Java compiler in your path instead of the Java compiler from the JDK. –