一键安装脚本(附带)

电脑技术网从python -m是什么意思CentOS 升级 Python3 (附带: 一键升级脚本)分析来看，对python -m是什么意思CentOS 升级 Python3 (附带: 一键升级脚本)的结果。

#!/bin/bash

######################################

## ##

## vers: 1.0 ##

## author: Dylan ##

## date: 20171027 ##

## useage： Update Python to 3.5 ##

## ##

######################################

#定义颜色输出

Color_Text() {

echo -e " e[0;$2m$1e[0m"

}

Echo_Red() {

echo $(Color_Text "$1" "31")

}

Echo_Green() {

echo $(Color_Text "$1" "32")

}

Echo_Yellow() {

echo $(Color_Text "$1" "33")

}

# Python 版本

Python_Version='3.5.2'

# Python 安装包

Python_Package="Python-${Python_Version}.tgz"

# Python 下载地址

Python_Url="http://mirrors.sohu.com/python/${Python_Version}/${Python_Package}"

# 包存放地址

Package_Dir=$(pwd)

# 安装目录

Python_Install_Dir="/usr/local/python-${Python_Version}"

# 网络检查

NETWORK_CHECK() {

# 检查联网情况

ping www.baidu.com -c 3

if [ $? != 0 ];then

Echo_Red "该服务器无法连网，请配置服务器网络！"

exit 1

fi

}

# 升级 Python

PYTHON_UPDATE() {

# 检查网络

NETWORK_CHECK

# 安装依赖

Echo_Green '安装依赖：'

yum -y install zlib-devel bzip2-devel wget openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make

# 检查 Python 版本

Echo_Green '当前版本 Python:'

Echo_Yellow "==========================================================================="

/usr/bin/python -V

Echo_Yellow "==========================================================================="

# 确认升级

read -p "是否继续升级 Python [y/n]：" Chose_Number

case ${Chose_Number} in

[yY][eE][sS]|[yY])

Echo_Yellow "你选择的是yes，升级继续进行..."

;;

[nN][oO]|[nN])

Echo_Yellow "你选择的是yes，升级即将终止..."

exit

;;

*)

Echo_Red "输入错误，即将退出升级..."

exit

esac

# 检测包是否存在

ls -l ${Package_Dir}/${Python_Package}

if [ $? != 0 ];then

# 下载安装包

Echo_Yellow "开始从网上下载 ${Python_Package}..."

wget ${Python_Url}

if [ $? != 0 ];then

Echo_Red "网上下载 ${Python_Package} 失败，请检查！"

exit 1

fi

Echo_Yellow "${Python_Package} 下载成功，即将开始升级..."

fi

# 解压安装

Echo_Yellow "开始解压 Python ..."

tar -zxf ${Python_Package} && cd Python-${Python_Version}

if [ $? != 0 ];then

Echo_Red "${Python_Package} 解压失败，请检查！"

exit 1

fi

Echo_Yellow "开始配置 Python ..."

./configure --prefix=${Python_Install_Dir} --enable-shared CFLAGS=-fPIC

if [ $? != 0 ];then

Echo_Red "${Python_Package} 解压失败，请检查！"

exit 1

fi

Echo_Yellow "开始编译 Python ..."

make -j 4

if [ $? != 0 ];then

Echo_Red "${Python_Package} 编译失败，请检查！"

exit 1

fi

Echo_Yellow "开始安装 Python ..."

make install

if [ $? != 0 ];then

Echo_Red "${Python_Package} 安装失败，请检查！"

exit 1

fi

# 配置环境变量

Echo_Yellow "修改环境变量 ..."

echo "export PATH=$PATH:${Python_Install_Dir}/bin" >>/etc/profile

# 修改原有的 Python 为新的

Echo_Yellow "替换旧版 Python ..."

mv /usr/bin/python /tmp

ln -s ${Python_Install_Dir}/bin/python3 /usr/bin/python

# 修改库文件

Echo_Yellow "修改 Python 库文件 ..."

ldd ${Python_Install_Dir}/bin/python3

cp ${Python_Install_Dir}/lib/libpython3.5m.so.1.0 /lib64/

# 修改 yum 配置

Echo_Yellow "修改 yum 文件 ..."

sed -i "s#/usr/bin/python#/usr/bin/python2.6#g" /usr/bin/yum

# 使配置生效

source /etc/profile

# 查看升级后版本

Echo_Green '当前版本 Python(建议手动执行：source /etc/profile):'

Echo_Yellow "==========================================================================="

/usr/bin/python -V

Echo_Yellow "==========================================================================="

}

# 输出安装信息

Echo_Yellow "==========================================================================="

Echo_Green ''

Echo_Green '版本：1.0'

Echo_Green '作者：Dylan'

Echo_Green '日期：20171027'

Echo_Green '备注：详情可以联系QQ：1214966109'

Echo_Green ''

Echo_Yellow "==========================================================================="

Echo_Green ''

Echo_Yellow '升级即将开始...'

Echo_Green ''

sleep 2

# 升级

PYTHON_UPDATE

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