认识系统服务
服务启动关闭
systemctl start 服务
:立即启动服务systemctl stop 服务
:立即关闭服务systemctl restart 服务
:立即重启服务systemctl reload 服务
:重新加载配置文件
开机自启动
systemctl enable 服务
:下次开机自启动systemctl disable 服务
:取消开机自启动
查询服务状态
systemctl status 服务
:列出服务状态
例子:
[root@qmmms ~]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
Active: inactive (dead)
Docs: man:firewalld(1)
查看所有服务
systemctl list-units
:查看已经启动的服务systemctl list-units --all
:查看所有服务
例子:
[root@qmmms ~]# systemctl list-units --all | head
UNIT LOAD ACTIVE SUB DESCRIPTION
proc-sys-fs-binfmt_misc.automount loaded active waiting Arbitrary Executable File Formats File System Automount Point
dev-disk-by\x2did-virtio\x2d116c6b92\x2da9bc\x2d4086\x2db.device loaded active plugged /dev/disk/by-id/virtio-116c6b92-a9bc-4086-b
dev-disk-by\x2did-virtio\x2d116c6b92\x2da9bc\x2d4086\x2db\x2dpart1.device loaded active plugged /dev/disk/by-id/virtio-116c6b92-a9bc-4086-b-part1
dev-disk-by\x2dpath-pci\x2d0000:02:01.0.device loaded active plugged /dev/disk/by-path/pci-0000:02:01.0
dev-disk-by\x2dpath-pci\x2d0000:02:01.0\x2dpart1.device loaded active plugged /dev/disk/by-path/pci-0000:02:01.0-part1
dev-disk-by\x2dpath-virtio\x2dpci\x2d0000:02:01.0.device loaded active plugged /dev/disk/by-path/virtio-pci-0000:02:01.0
dev-disk-by\x2dpath-virtio\x2dpci\x2d0000:02:01.0\x2dpart1.device loaded active plugged /dev/disk/by-path/virtio-pci-0000:02:01.0-part1
dev-disk-by\x2duuid-6c533615\x2dcacd\x2d47a7\x2d844e\x2d10013da6d35b.device loaded active plugged /dev/disk/by-uuid/6c533615-cacd-47a7-844e-10013da6d35b
dev-ttyS0.device
注:这些内容是最基础的使用,更多使用方法看书
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