一行命令让你的服务器命令行亮起来！！！！

if [ "$(whoami)" = "root" ]; then echo "PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]# '" >> /root/.bashrc; source /root/.bashrc; echo "已为root用户设置提示符以#结尾"; else echo "PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]$ '" >> ~/.bashrc; source ~/.bashrc; echo "已为非root用户设置提示符以$结尾"; fi