CentOS7 update each environment

This article is for personal notes only

go language

go official website

go1.10.1 installation package download link

Install possible tools
```
yum install wget -y
```

Get the go language source package

wget https://dl.google.com/go/go1.10.1.src.tar.gz

Unzip to the specified folder

mkdir ~/opt
tar zxvf go1.10.1.src.tar.gz -C ~/opt

Update environment variables and make environment variables take effect

vim ~/.bash_profile 
  GOROOT_BOOTSTRAP=~/opt/go
  PATH=$PATH:$HOME/bin:$GOROOT_BOOTSTRAP/bin 
source /etc/profile

python language

python official website

python3.6.5 installation package download link

Install possible tools

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

Get python3.6.5 language source package

wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz

Backup old python in case something goes wrong and cannot be restored
```
mv /usr/bin/python /usr/bin/python.bak
```

Unzip the installation configuration

tar -zxvf  Python-3.6.5.tgz
cd Python-3.6.5
./configure prefix=/usr/local/python3
make && make install
ln -s /usr/local/python3/bin/python3 /usr/bin/python
ln -s /usr/local/python3/bin/python3 /usr/bin/python3

Solve the problem

Because the python2 version is required to execute yum, we also need to modify the configuration of yum and execute:

vi /usr/bin/yum
把 #! /usr/bin/python修改为#! /usr/bin/python2
同理 vi /bin/yum
把 #! /usr/bin/python 也要修改为#! /usr/bin/python2
同理 vi /usr/libexec/urlgrabber-ext-down
把 #! /usr/bin/python 也要修改为#! /usr/bin/python2

sqlite

sqlite official website

sqlite3.24.0 installation package download link

Install sqlite3.24.0

    wget http://www.sqlite.org/snapshot/sqlite-snapshot-201804241859.tar.gz
    tar -zxvf sqlite-snapshot-201804241859.tar.gz
    cd sqlite-snapshot-201804241859
    ./configure
    make
    make install

update python internal sqlite

If you want to update sqlite inside python, first install the new version of sqlite, and then change the environment variable to add export LD_LIBRARY_PATH=, for example:
```
export LD_LIBRARY_PATH=/root/sqlite-snapshot-201804241859/.libs
```