#systemctl
#systemctl --all
#systemctl list-units --type=sokect
#systemctl list-units --type=service
type后面可以接的类型可以通过help查看
# systemctl -t help
Available unit types:
service
socket
target
device
mount
automount
snapshot
timer
swap
path
slice
scope。
命令大致有start,stop,restart,status,reload,enable,disable,is-enabled
#systemctl is-enabled xxx.service #查询服务是否开机启动
#systemctl enable xxx.service #开机运行服务
#systemctl disable xxx.service #取消开机运行
#systemctl start xxx.service #启动服务
#systemctl stop xxx.service #停止服务
#systemctl restart xxx.service #重启服务
#systemctl reload xxx.service #重新加载服务配置文件
#systemctl status xxx.service #查询服务运行状态
#systemctl --failed #显示启动失败的服务
