瘦了就帅了 / Systemd 系统工具命令指南

systemctl list-units            ##列出当前系统服务的状态
systemctl list-unit-files       ##列出服务的开机状态
systemctl status sshd           ##查看指定服务的状态
systemctl stop sshd             ##关闭指定服务
systemctl start sshd            ##开启指定服务
systemctl restart sshd          ##从新启动服务
systemctl enable sshd           ##设定指定服务开机开启
systemctl disable sshd          ##设定指定服务开机关闭
systemctl reload sshd           ##使指定服务从新加载配置
systemctl list-dependencies sshd    ##查看指定服务的倚赖关系
systemctl mask  sshd            ##冻结指定服务
systemctl unmask sshd           ##启用服务
systemctl set-default multi-user.target ##开机不开启图形
systemctl set-default graphical.target  ##开机启动图形

$ _hostname_=XXXX
$ hostnamectl --static set-hostname ${_hostname_}
$ hostnamectl --transient set-hostname ${_hostname_}
$ hostnamectl --pretty set-hostname ${_hostname_}

$ timedatectl set-timezone Asia/Shanghai