Useful Commands/Service Management: Difference between revisions
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== | == systemctl == | ||
{| class="wikitable" | {| class="wikitable" | ||
! 情境 || | ! 情境 || Command | ||
|- | |- | ||
| | | List services || | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
systemctl -t service # 省略式 | systemctl -t service # 省略式 | ||
| Line 9: | Line 9: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
|- | |- | ||
| | | Control services || | ||
<syntaxhighlight lang="bash"> | <syntaxhighlight lang="bash"> | ||
systemctl status nginx | systemctl status nginx | ||
Revision as of 10:10, 7 September 2026
systemctl
| 情境 | Command |
|---|---|
| List services |
systemctl -t service # 省略式
systemctl list-units -t service # 完整式
|
| Control services |
systemctl status nginx
systemctl start nginx
systemctl stop nginx
systemctl reload nginx
systemctl disable mysql.service
systemctl reload systemd-networkd
|
Linux 傳統
| 情境 | 指令 |
|---|---|
| 管理系統服務 | sudo service start/stop/reload/restart {服務名稱}
|
| 顯示服務狀態 | service --status-all
|
| 顯示服務 (啟動/關閉) 時機 (runlevel 0~6) | chkconfig --list
|
| 設定服務在開機後自動啟動 | sudo chkconfig --level 2345 {服務名稱} on
|
Run Level 說明
| runlevel | 英文說明 | 中文說明 |
|---|---|---|
| 0 | halt | 系統關機 |
| 1 | single user mode | 單人模式，用在系統出問題時的維護 |
| 2 | Multi-user, without NFS | 類似 runlevel 3，但無 NFS 服務 |
| 3 | Full multi-user mode | 完整含有網路功能的純文字模式 |
| 4 | unused | 保留 |
| 5 | X11 | 類似 runlevel 3，有使用 X Window |
| 6 | reboot | 重新開機 |