jdk配置脚本

① 用shell脚本怎么实现安装升级版本

A：本脚本运行的机器，linux
B：待安装JDK的机器, Linux
首先在脚本运行的机器A上确定可以ssh无密码登录到待安装jdk的机器B上，然后就可以在A上运行本脚本:
复制代码 代码如下:

$ ./install-jdk.sh B的IP
or:
复制代码 代码如下:

$ ./install-jdk.sh "B的IP" "JDK的URI"
就可以在机器B上安装JDK。jdk使用的tar包需要用户自己设定DEFAULT_JDK_SRC=？，保证可以wget得到即可。下面是全部脚本内容：
复制代码 代码如下:

#!/bin/bash
#
# @file
# install-jdk.sh
#
# @date
# 2013-12-19
#
# @author
# cheungmine
#
# @version
# 0.0.1pre
#
# @usage:
# ./install-jdk.sh 192.168.122.206
#
################################################################################
. common.sh

#***********************************************************
# install_jdk
# install jdk on machine: /usr/local/lib
#
# Parameters:
# machine - root@ipaddr
# jdkUri - uri for fetching tarball
#
# Example:
#
# install_jdk [email protected] ftp://vm-ftp/pub/tarball/jdk-7u67-linux-x64.tar.gz
#
#***********************************************************
. common.sh

# YOU MIGHT CHANGE BELOW LINE TO GET YOUR JDK TARBALL:
DEFAULT_JDK_SRC="ftp://vm-ftp/pub/tarball/jdk-7u67-linux-x64.tar.gz"

# DO NOT CHANGE BELOW TWO LINES:
INSTALL_DIR="/usr/local/lib/java"
LOCAL_DIR="./.tmp"

function install_jdk() {
echo -e "<INFO> install jdk on machine: $1"

local DEST_LOGIN=$1
local JDK_URI=$2
local TAR=$(basename $JDK_URI)

echo -e "<INFO> jdk: '$JDK_URI'"

wget -c $JDK_URI -P $LOCAL_DIR -O $LOCAL_DIR/$TAR

$(is_empty_dir "$LOCAL_DIR/jdk_untar")
local ret=$?

case $ret in
$DIR_NOT_EXISTED)
mkdir -p $LOCAL_DIR/jdk_untar
;;
$DIR_IS_EMPTY)
;;
$DIR_NOT_EMPTY)
rm -rf $LOCAL_DIR/jdk_untar/*
;;
*)
exit $ERR_FATAL_ERROR
;;
esac

# untar to jdk_untar
tar -zxf $LOCAL_DIR/$TAR -C $LOCAL_DIR/jdk_untar

$(is_empty_dir "$LOCAL_DIR/jdk_untar")
local ret=$?

if [ "$ret" -eq "$DIR_NOT_EMPTY" ]; then
local jdk_home=`ls $LOCAL_DIR/jdk_untar 2>/dev/null`
echo $jdk_home
else
exit $ERR_FATAL_ERROR
fi

echo -e "<INFO> create folder on: $DEST_LOGIN:$INSTALL_DIR"
local ret=`ssh $DEST_LOGIN "mkdir $INSTALL_DIR"`

echo -e "<INFO> $jdk_home/ to: $DEST_LOGIN:$INSTALL_DIR/"
local ret=`scp -r $LOCAL_DIR/jdk_untar/$jdk_home $DEST_LOGIN:$INSTALL_DIR`

# remove local tar
rm -rf $LOCAL_DIR/jdk_untar

local DEST_JAVA_HOME=$INSTALL_DIR/$jdk_home

echo -e "<TODO> remove old settings for install_jdk in /etc/profile"

echo -e "<INFO> set /etc/profile: JAVA_HOME=$DEST_JAVA_HOME"
local ret=`ssh $DEST_LOGIN "echo '' >> /etc/profile"`
local ret=`ssh $DEST_LOGIN "echo '#!{{[email protected]==>' >> /etc/profile"`

local ret=`ssh $DEST_LOGIN "echo 'export JAVA_HOME=$DEST_JAVA_HOME' >> /etc/profile"`
local ret=`ssh $DEST_LOGIN "echo 'export CLASSPATH=.:\\$JAVA_HOME/lib/tools.jar:\\$JAVA_HOME/lib/dt.jar' >> /etc/profile"`
local ret=`ssh $DEST_LOGIN "echo 'export PATH=\\$JAVA_HOME/bin:\\$JAVA_HOME/jre/bin:\\$PATH' >> /etc/profile"`

local ret=`ssh $DEST_LOGIN "echo '#!<[email protected]}}'>> /etc/profile"`

local ret=`ssh $DEST_LOGIN ". /etc/profile"`
}

function uninstall_jdk() {
echo -e "<TODO> uninstall jdk from: $1"
}

#=======================================================================
# ---- main() ----
if [ -n $1 ]; then
DEST_IP=$1
JDK_SRC=$DEFAULT_JDK_SRC

if [ $# == 2 ]; then
JDK_SRC=$2
fi

echo -e "<INFO> install jdk on '$DEST_IP', jdk: '$JDK_SRC'"

install_jdk "root@$DEST_IP" "$JDK_SRC"
fi

② 在ubuntu中如何安装shell 脚本程序

jdk源里有

脚本就chmod 755 XX
sudo ./XXX

ubuntu下最好不要用sh XX来运行脚本
ubuntu默认的system shell为dash,只有严格符合posix标准的脚本才能用sh XX来运行
否则用bash XX或./XXX比较好