系統環境為:ubuntu 14.04
一、JDK 自動安裝腳本
jdk自動安裝bash shell腳本,截止今天(2014/10/15)親測可用:

sudo su #切換到root權限
mkdir /usr/local/java
cd /usr/local/java
download jdk 1.7.67
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/7u67-b01/jdk-7u67-linux-x64.tar.gz
extract jdk
tar -xvf jdk-7u67-linux-x64.tar.gz
set environment
export JAVA_HOME="/usr/local/java/jdk1.7.0_67"
if ! grep "JAVA_HOME=/usr/local/java/jdk1.7.0_67" /etc/environment
then
echo "JAVA_HOME=/usr/local/java/jdk1.7.0_67" | sudo tee -a /etc/environment
echo "export JAVA_HOME" | sudo tee -a /etc/environment
echo "PATH=$PATH:$JAVA_HOME/bin" | sudo tee -a /etc/environment
echo "export PATH" | sudo tee -a /etc/environment
echo "CLASSPATH=.:$JAVA_HOME/lib" | sudo tee -a /etc/environment
echo "export CLASSPATH" | sudo tee -a /etc/environment
fi
update environment
source /etc/environment
ehco "jdk is installed !"

簡單解釋一下:用wget直接下載下傳jdk和tar.gz包,然後解壓,然後再修改系統環境變量,并更新。
輸入javac 或java -version即可進行驗證。
JAVA_HOME=/usr/jdk1.7.0_67
export JAVA_HOME
PATH=$PATH:$JAVA_HOME/bin
export PATH
CLASSPATH=.:$JAVA_HOME/lib
export CLASSPATH
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games"
JAVA_HOME=/usr/local/java/jdk1.7.0_67
二、Tomcat 自動安裝腳本

#install tomcat
sduo su
mkdir /usr/local/tomcat
cd /usr/local/tomcat
wget http://apache.fayea.com/apache-mirror/tomcat/tomcat-7/v7.0.56/bin/apache-tomcat-7.0.56.tar.gz
tar -xvf apache-tomcat-7.0.56.tar.gz
#change port 8080 to 80
sed -i 's/8080/80/' apache-tomcat-7.0.56/conf/server.xml
#startup
nohup ./apache-tomcat-7.0.56/bin/startup.sh

注:同樣是使用wget進行下載下傳Tomcat tar.gz包,然後解壓,解壓完成以後使用sed指令更改預設端口号8080為80,然後使用nohup指令進行背景服務啟動!
附windows環境下安裝jdk配置:
jdk官方下載下傳位址:http://www.oracle.com/technetwork/java/javase/downloads/index.html

windows:
1)在系統變量裡建立JAVA_HOME變量,變量值為:C:\Java\jdk1.7.0_67(根據自己的安裝路徑填寫)
2)建立classpath變量,變量值為:.;%JAVA_HOME%\lib;%JAVA_HOME%\lib\tools.jar
3)在path變量(已存在不用建立)添加變量值:%JAVA_HOME%\bin;%JAVA_HOME%\jre\bin(注意變量值之間用“;”隔開)

參考:
1、how-to-automate-download-and-installation-of-java-jdk-on-linux
2、linux shell 腳本攻略學習19--sed指令詳解