在/etc/systemd/system/rc-local.service文件中追加以下内容
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[Install]
WantedBy=multi-user.target
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创建文件sudo touch /etc/rc.local,然后将以下内容复制到文件中
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#!/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 "看到这行字，说明添加自启动脚本成功。" > /usr/local/test.log
exit 0
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给rc.local加上权限
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sudo chmod +x /etc/rc.local
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启用服务
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sudo systemctl enable rc.local
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启动服务并检查状态
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sudo systemctl start rc.local.service
sudo systemctl status rc.local.service
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重启并检查test.log文件中的内容，确认脚本是否启动成功
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cat /usr/local/test.log
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