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| #!/bin/sh
echo "---------------uninstall old java ------------------"
#卸载旧版本的java
rpm -qa | grep java | xargs rpm -e --nodeps
rpm -qa | grep jdk | xargs rpm -e --nodeps
rpm -qa | grep gcp | xargs rpm -e --nodeps
#删除旧版本的JAVA_HOME
sed -ie '/JAVA_HOME/d' /etc/profile
echo "finished"
echo "------------------start yum install java-1.8.0-openjdk --------------"
#yum安装Java
yum install java-1.8.0-openjdk* -y
#在/etc/profile追加JAVA_HOME
cat >> /etc/profile<<EOF
export JAVA_HOME=/usr/lib/jvm/java
export CLASSPATH=.:\$JAVA_HOME/lib/dt.jar:\$JAVA_HOME/lib/tools.jar:\$JAVA_HOME/jre/lib/rt.jar
export PATH=\$PATH:\$JAVA_HOME/bin
EOF
#刷新JAVA_HOME
source /etc/profile
#检测是否安装成功
java -version
echo "----------------yum install java-1.8.0-openjdk success ---------------------"
|
