CentOS 7.x
# 每次安装完 CentOS 之后，这几个命令总要执行一下
yum install -y epel-release
yum install -y bash-completion tmux yum-cron yum-utils
yum install -y sysstat procps-ng psmisc
# 取消「You have mail in /var/spool/mail/root」提示
echo 'unset MAILCHECK' >> .bashrc
# 调整PS1变量
cat >> ~/.bashrc <<EOF
export PS1="\e[01;31m\u@\h \w\e[00m""\e[34;1m\e[0m""\n""# "
EOF
# 重新登录一下
exec su - root
Debian-based Linux distributions
# 添加自定义设置
cat >> ~/.bashrc <<EOF
# 调整PS1变量
export PS1="\e[01;31m\u@\h \w\e[00m""\e[34;1m\e[0m""\n""# "
# 常用命令别名
alias ll='ls -l -a --color'
alias ls='ls -a --color'
EOF
# 重新登录一下
exec su - root
