centos7 安装jdk 脚本

下载安装包

链接：https://pan.baidu.com/s/10-U54WwoEaCC9Afj58owJA
提取码：jdk8

写如脚本

vi ***.sh

#!/bin/bash

#install jdk

jdk_src="jdk-8u221-linux-x64.tar.gz" # jdk安装包，解压之后文件名为jdk1.8.0_221
jdk_target="/data/soft"

if [ ! -d $jdk_target ];then
mkdir -p $jdk_target
fi

echo "Decompression jdk.tar.gz"
tar zxvf $jdk_src -C $jdk_target

#if [ -f /etc/bashrc ]; then
# `echo "export JAVA_HOME=$jdk_target/jdk1.8.0_221" >> /etc/bashrc`
# `echo 'export PATH=$JAVA_HOME/bin:$PATH' >> /etc/bashrc`
# `echo 'export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar' >> /etc/bashrc`
# `source /etc/bashrc`
#elif [ -f /etc/bash.bashrc ]; then
# `echo "export JAVA_HOME=$jdk_target/jdk1.8.0_221" >> /etc/bash.bashrc`
# `echo 'export PATH=$JAVA_HOME/bin:$PATH' >> /etc/bash.bashrc`
# `echo 'export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar' >> /etc/bash.bashrc`
# `source /etc/bash.bashrc`
#else
#echo "importJDK"
# `echo "export JAVA_HOME=$jdk_target/jdk1.8.0_221" >> /etc/profile`
# `echo 'export PATH=$JAVA_HOME/bin:$PATH' >> /etc/profile`
# `echo 'export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar' >> /etc/profile`
#fi
`echo "export JAVA_HOME=$jdk_target/jdk1.8.0_221" >> /etc/profile`
`echo 'export PATH=$JAVA_HOME/bin:$PATH' >> /etc/profile`
`echo 'export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar' >> /etc/profile`

#source /etc/profile
echo "Finished"