编译安装bash-5.0

# 下载源码包
wget http://ftp.gnu.org/gnu/bash/bash-5.0.tar.gz

# 解压，进入目录，编译安装
cd bash-5.0
./configure && make && make install

# 添加软链接
mv /bin/bash /bin/bash.bak
ln -s /usr/local/bin/bash /bin/bash

# 重启系统
reboot