shell自动安装python3的脚本写法

# vim install_python3.sh
1
#!/bin/sh
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libffi-devel
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tgz
tar -zxvf Python-3.7.0.tgz
mkdir /usr/local/python3
cd Python-3.7.0
./configure --prefix=/usr/local/python3
make && make install
[ -f /usr/bin/python3 ] && mv /usr/bin/python3 /usr/bin/python3_old
[ -f /usr/bin/pip3 ] && mv /usr/bin/pip3  /usr/bin/pip3_old
ln -s /usr/local/python3/bin/python3.7 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3.7 /usr/bin/pip3

#!/bin/bash
yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel epel-release gcc
wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tgz
tar vxf Python-3.6.1.tgz
cd Python-3.6.1
./configure --prefix=/usr/local
make && make install
cd ..
yum -y install python-pip

yum install zlib zlib-devel readline-devel sqlite-devel bzip2-devel openssl-devel gdbm-devel libdbi-devel ncurses-libs kernel-devel libxslt-devel libffi-devel python-devel zlib-devel openldap-devel sshpass gcc git -y
yum install http://www.percona.com/downloads/percona-release/redhat/0.1-6/percona-release-0.1-6.noarch.rpm -y
yum install Percona-Server-server-56 install Percona-Server-devel-56 -y
wget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tgz #CentOS 7不用安装python2.7
tar -xzvf Python-3.6.6.tgz
cd Python-3.6.6
./configure --prefix=/usr/local/python3
make all
make install
make clean
make distclean 
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3