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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | #!/bin/bash# shell script to install jdk # 1. remove openjdk if exists.for i in $(rpm -qa | grep jdk | grep -v grep)do echo "Deleting rpm -> "$i rpm -e --nodeps $idoneif [[ ! -z $(rpm -qa | grep jdk | grep -v grep) ]];then echo "-->Failed to remove the defult Jdk."else# 2.unzip and install JDK(jdk-6u45-linux-x64.bin) tar -zxvf jdk-7u71-linux-x64.tar.gz mkdir /usr/java mv ./jdk1.7.0_71 /usr/java/jdk1.7.0_71 rm -rf ./jdk1.7.0_71 # 3. config /etc/profile echo "export JAVA_HOME=/usr/java/jdk1.7.0_71" >>/etc/profile echo 'export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar'>>/etc/profile echo 'export PATH=$PATH:$JAVA_HOME/bin'>>/etc/profile source /etc/profile fi |