Build Java JDK Environment under Linux

First, download

First of all, of course it is to download.

Address: www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

Select a different version as needed.

Second, decompression

Unzip the downloaded. tar.gz file.

Use the following command to extract:

Tar zxvf./jdk-7u45-linux-x64. tar.gz

For ease of administration, you can move the extracted files to another folder.

You can do it without doing it.

The author moved the file to the/opt/java/jdk/directory.

To facilitate the next set of environment variables, change the folder to a short name--jdk1.7

You can rename a folder by using the following command

MV Jdk1. 7.0_45/jdk1. 7/ 

Third, set environment variables

Edit the. bashrc file.

Enter the following command at the terminal:

VI ~/.BASHRC

At the end of the file, add the following lines of code:

Export JAVA_HOME=/OPT/JAVA/JDK/JDK1. 7
Export Jre_home=${java_home}/jreexport classpath=.:${java_home}/lib:${jre_home}/libexport PATH=${JAVA_HOME}/ Bin: $PATH

In order for the changes to take effect immediately, execute the following command at the terminal:

SOURCE ~/.BASHRC

PS: When modifying ~/.BASHRC's path modification error, unable to use the system's other commands, the terminal input is as follows: you can use

Export Path=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/x11:/usr/games

P.S. It is best to back up the backup command before modifying the. bashrc file:

CP. BASHRC. Bash_origina

Build Java JDK Environment under Linux