使用service查看命令說明

ubuntu@VM-0-17-ubuntu:/$?service

Usage:?service??|?--status-all?|?[?service_name?[?command?|?--full-restart?]?]

ubuntu@VM-0-17-ubuntu:/$

1. 查看系統(tǒng)服務(wù)列表 ? service –status -all ? 注意，status 前面是兩個橫線 -- ? ? all前面是一個橫線 -

由于太長截圖列出一部分服務(wù)，從圖中看到，服務(wù)名稱前面有 + - 號，

+服務(wù)啟動

- 服務(wù)未啟動

2. 查看單個服務(wù)啟動狀態(tài)? service servicename status ?? 注意，status 前面沒有橫線

舉例，查看atd的服務(wù)狀態(tài)，返回狀態(tài)信息如下ubuntu@VM-0-17-ubuntu:/$?service?atd?status

●?atd.service?-?Deferred?execution?scheduler

Loaded:?loaded?(/lib/systemd/system/atd.service;?enabled;?vendor?preset:?enabled)

Active:?active?(running)?since?Tue?2019-10-15?09:16:18?CST;?3?weeks?1?days?ago

Docs:?man:atd(8)

Main?PID:?1051?(atd)

Tasks:?1?(limit:?4465)

CGroup:?/system.slice/atd.service

└─1051?/usr/sbin/atd?-f

舉例，查看acpid(未開啟)的服務(wù)狀態(tài)ubuntu@VM-0-17-ubuntu:/$?service?acpid?status

●?acpid.service?-?ACPI?event?daemon

Loaded:?loaded?(/lib/systemd/system/acpid.service;?disabled;?vendor?preset:?enabled)

Active:?inactive?(dead)

3.啟動服務(wù)? service servicename start ? ，使用acpid 服務(wù)舉例root@VM-0-17-ubuntu:/#?service?acpid?start

啟動后，使用 service acpid status 查看服務(wù)狀態(tài)root@VM-0-17-ubuntu:/#?service?acpid?start

root@VM-0-17-ubuntu:/#?service?acpid?status

●?acpid.service?-?ACPI?event?daemon

Loaded:?loaded?(/lib/systemd/system/acpid.service;?disabled;?vendor?preset:?enabled)

Active:?active?(running)?since?Wed?2019-11-06?10:12:58?CST;?12s?ago

Main?PID:?23365?(acpid)

Tasks:?1?(limit:?4465)

CGroup:?/system.slice/acpid.service

└─23365?/usr/sbin/acpid

4.停止服務(wù) service servicename stop? ，使用acpid服務(wù)舉例root@VM-0-17-ubuntu:/#?service?acpid?stop

Warning:?Stopping?acpid.service,?but?it?can?still?be?activated?by:

acpid.path

root@VM-0-17-ubuntu:/#?service?acpid?status

●?acpid.service?-?ACPI?event?daemon

Loaded:?loaded?(/lib/systemd/system/acpid.service;?disabled;?vendor?preset:?enabled)

Active:?inactive?(dead)?since?Wed?2019-11-06?10:18:44?CST;?19s?ago

Process:?23365?ExecStart=/usr/sbin/acpid?$OPTIONS?(code=exited,?status=0/SUCCESS)

Main?PID:?23365?(code=exited,?status=0/SUCCESS)

Nov?06?10:12:58?VM-0-17-ubuntu?systemd[1]:?Started?ACPI?event?daemon.

Nov?06?10:12:58?VM-0-17-ubuntu?acpid[23365]:?starting?up?with?netlink?and?the?input?layer

Nov?06?10:12:58?VM-0-17-ubuntu?acpid[23365]:?0?rules?loaded

Nov?06?10:12:58?VM-0-17-ubuntu?acpid[23365]:?waiting?for?events:?event?logging?is?off

Nov?06?10:18:44?VM-0-17-ubuntu?systemd[1]:?Stopping?ACPI?event?daemon...

Nov?06?10:18:44?VM-0-17-ubuntu?systemd[1]:?Stopped?ACPI?event?daemon.

5.重啟服務(wù)? service servicename restart

重啟就不舉例了，效果自己腦補(bǔ)吧

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