ubuntu-18.04 設置開機啟動腳本-親測有效

ubuntu-18.04不能像ubuntu14一樣通過編輯rc.local來設置開機啟動腳本，通過下列簡單設置后，可以使rc.local重新發揮作用。

2、將下列內容復制進rc-local.service文件

[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、創建文件rc.local

sudo vi /etc/rc.local

4、將下列內容復制進rc.local文件

#!/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，說明添加自啟動腳本成功。" > /usr/local/test.log
exit 0

5、給rc.local加上權限

sudo chmod +x /etc/rc.local

6、啟用服務 

sudo systemctl enable rc-local

7、啟動服務並檢查狀態

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

8、重啟並檢查test.log文件

cat /usr/local/test.log　　

如果能看到內容，說明設置成功，你就可以通過編輯rc.local文件來設置啟動腳本了

參考文檔： https://www.cnblogs.com/airdot/p/9688530.html