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ubuntu-18.04 設定開機啟動指令碼

ubuntu-18.04 設定開機啟動指令碼

參閱下列連結

https://askubuntu.com/questions/886620/how-can-i-execute-command-on-startup-rc-local-alternative-on-ubuntu-16-10

ubuntu-18.04不能像ubuntu14一樣通過編輯rc.local來設定開機啟動指令碼,通過下列簡單設定後,可以使rc.local重新發揮作用。

1、建立rc-local.service檔案

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1 sudo vi /etc/systemd/system/rc-local .service

2、將下列內容複製進rc-local.service檔案

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 [Unit] Description= /etc/rc . local Compatibility ConditionPathExists= /etc/rc . local   [Service]
Type=forking ExecStart= /etc/rc . local start TimeoutSec=0 StandardOutput= tty RemainAfterExit= yes SysVStartPriority=99   [Install] WantedBy=multi-user.target

3、建立檔案rc.local  

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1 sudo vi /etc/rc . local

4、將下列內容複製進rc.local檔案

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 #!/bin/sh -e # # rc.local # # This script is executed at the end of each multiuser runlevel. # Make sure that the script will "exit 0" on success or any other # value on error. # # In order to enable or disable this script just change the execution # bits. # # By default this script does nothing. echo "看到這行字,說明新增自啟動指令碼成功。" > /usr/local/test .log exit 0

5、給rc.local加上許可權

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1 sudo chmod +x /etc/rc . local

6、啟用服務

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1 sudo systemctl enable rc- local

7、啟動服務並檢查狀態

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1 2 sudo systemctl start rc- local .service sudo systemctl status rc- local .service

8、重啟並檢查test.log檔案

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1 cat /usr/local/test .log  

如果能看到內容,說明設定成功,你就可以通過編輯rc.local檔案來設定啟動指令碼了