install_jdk.sh

#!/bin/bash

JDK_FILE="jdk-8u371-linux-x64.tar.gz"

JDK_DIR="/usr/local"

color () {
    RES_COL=60
    MOVE_TO_COL="echo -en \\033[${RES_COL}G"
    SETCOLOR_SUCCESS="echo -en \\033[1;32m"
    SETCOLOR_FAILURE="echo -en \\033[1;31m"
    SETCOLOR_WARNING="echo -en \\033[1;33m"
    SETCOLOR_NORMAL="echo -en \E[0m"
    echo -n "$2" && $MOVE_TO_COL
    echo -n "["
    if [ $1 = "success" -o $1 = "0" ] ;then
        ${SETCOLOR_SUCCESS}
        echo -n $"  OK  "    
    elif [ $1 = "failure" -o $1 = "1"  ] ;then
        ${SETCOLOR_FAILURE}
        echo -n $"FAILED"
    else
        ${SETCOLOR_WARNING}
        echo -n $"WARNING"
    fi
    ${SETCOLOR_NORMAL}
    echo -n "]"
    echo                                                                                                                              
}

install_jdk(){
if  [ ! -f "./$JDK_FILE" ];then
	color 1  "$JDK_FILE 文件不存在" 
	exit; 
elif [ -d $JDK_DIR/jdk ];then
    color 1  "JDK 已经安装" 
    exit
fi
tar xvf  ./$JDK_FILE  -C $JDK_DIR
cd  $JDK_DIR && ln -s jdk* jdk 

cat >  /etc/profile.d/jdk.sh <<EOF
export JAVA_HOME=$JDK_DIR/jdk
export PATH=\$PATH:\$JAVA_HOME/bin
EOF
.  /etc/profile.d/jdk.sh
java -version && color 0  "JDK 安装完成" || { color 1  "JDK 安装失败" ; exit; }

}

install_jdk