Useful Commands/Service Management: Difference between revisions

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Line 38: Line 38:
! Run Level || Description
! Run Level || Description
|-
|-
| 0 || halt
| align="center" | 0 || halt
|-
|-
| 1 || single user mode
| align="center" | 1 || single user mode
|-
|-
| 2 || Multi-user, without NFS
| align="center" | 2 || Multi-user, without NFS
|-
|-
| 3 || Full multi-user mode
| align="center" | 3 || Full multi-user mode
|-
|-
| 4 || unused
| align="center" | 4 || unused
|-
|-
| 5 || X11
| align="center" | 5 || X11
|-
|-
| 6 || reboot
| align="center" | 6 || reboot
|}
|}

Revision as of 10:12, 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

Run Level Description
0 halt
1 single user mode
2 Multi-user, without NFS
3 Full multi-user mode
4 unused
5 X11
6 reboot