Shell script to install JDK under Redhat

It's annoying to unload the system following the OPENJDK and then install the orcle jdk every time, so

Writing a script execution is a hassle, just put the following bash script and the one you're downloading

The jdk-7u79-linux-x64.tar.gz package can be placed in the same folder.

Don't forget to execute permissions on the script

#chmod +x shellname.sh

#.. /shellname.sh

#!/bin/bash

#shell script to install JDK

# 1. Remove OPENJDK if exists.

For I in $ (rpm-qa | grep openjdk | grep-v grep)

Do

echo "Deleting rpm" $i

RPM-E--nodeps $i

Done

if [[!-Z $ (rpm-qa | grep jdk | grep-v grep)];

Then

echo "-->failed to remove the Defult Jdk."

Else

# 2.tar and install JDK (jdk-7u79-linux-x64.tar.gz)

TAR-ZXVF jdk-7u79-linux-x64.tar.gz

Mkdir/usr/java

mv./jdk1.7.0_79/usr/java/jdk1.7.0_79

Rm-rf./jdk1.7.0_79

# 3. Config/etc/profile

echo "Export java_home=/usr/java/jdk1.7.0_79" >>/etc/profile

Echo-e ' Export classpath=.: $JAVA _home/jre/lib/rt.jar: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar ' >>/etc /profile

Echo-e ' Export path= $PATH: $JAVA _home/bin ' >>/etc/profile

Source/etc/profile

Fi

Shell script to install JDK under Redhat