centos初始化脚本_bash: prompt_command: readonly variable

适用于新机器安装后的初始化，安装常用工具及初始系统配置

systemctl stop firewalld.service
systemctl disable firewalld.service
systemctl stop NetworkManager
systemctl disable NetworkManager
sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/sysconfig/selinux
sed -i 's/^SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
cat /etc/sysconfig/selinux 
setenforce 0
getenforce
#其他的一些必要工具
yum install net-tools vim wget yum-utils  -y
#更换yum源
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
#自动同步时间
yum install ntpdate  -y
\cp /usr/share/zoneinfo/Asia/Shanghai  /etc/localtime
ntpdate us.pool.ntp.org
(echo "10 * * * * /usr/sbin/ntpdate -u cn.pool.ntp.org " ; crontab -l )| crontab

#优化history
mkdir -p /var/log/history
cat << EOF >> /etc/profile
readonly HISTFILE=/var/log/history/$USER-$UID.log
readonly HISTFILESIZE=50000
readonly HISTSIZE=10000
readonly HISTTIMEFORMAT='%F %T '
readonly HISTCONTROL=ignoredups
shopt -s histappend
readonly PROMPT_COMMAND="history -a"
EOF
source /etc/profile

#安装docker
yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum -y install docker-ce docker-ce-cli containerd.io

mkdir /etc/docker/
cat << EOF >/etc/docker/daemon.json
{
"registry-mirrors": ["https://registry.docker-cn.com"]
}
{
"registry-mirrors": ["http://hub-mirror.c.163.com"]
}
EOF
systemctl start docker
systemctl enable docker
docker -v
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