Install java in centos

28 Sep

1. download bin file using below command

> wget

If the link is not working,  Please use the below link, If you need latest one download it.

2. After download complete it look like


so we need to rename the file using below command,

> mv  jdk-6u26-linux-x64.bin?e=1312191174&h=c5f0b98f8ea25aca97f3b53be8497570  jdk-6u4-linux-x64.bin

3. Move the self-extracting file to where you want to install it and extract the file

> mv jdk-6u4-linux-x64.bin /opt/

> cd /opt

> sh jdk-6u4-linux-x64.bin

4. Create a bash script to set JAVA_HOME and add Java executables to the path.

> vim /etc/profile.d/

export JAVA_HOME=/opt/jdk1.6.0_26/
export PATH=$JAVA_HOME/bin:$PATH

5. Source you new script so exports take effect

> source /etc/profile.d/

6. Setup Java to be used by the alternatives system (if you want, or if you have an existing install of Java on your box.

> alternatives –install /usr/bin/java java /opt/jdk1.6.0_04/bin/java 2

7. Set this new alternatives as the current configuration

> alternatives –config java


There are 3 programs which provide 'java'.

  Selection    Command
   1           /usr/lib/jvm/jre-1.4.2-gcj/jav
 + 2           /usr/java/jdk1.6.0_20/bin/java
*  3           /usr/lib/jvm/jre-1.6.0-openjdk/bin/java

Just note down the number you are going to use.

2 — alternative number noted in step 6.

After complete the process just conform using

>java -version

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Posted by on September 28, 2011 in CentOS, Installations, Java


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