21 lines
919 B
Markdown
Executable File
21 lines
919 B
Markdown
Executable File
# 5.45 创建服务延时执行命令
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以下以创建一个执行1分钟后关闭错误报警蜂鸣声的服务为例，用到了at定时执行，需要提前安装
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延时服务：sudo apt install at
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说明：事实上，延时执行是没有必要的，仅以此为例，用户可尝试修改ExecStart的脚本。
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sudo dedit /etc/systemd/system/nobeep.service
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Requires=atd.service
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添加内容：
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[Unit]
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Description=Keep quiet when some error happens
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Requires=atd.service
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[Service]
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Type=simple
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ExecStart=/bin/bash -c "echo /sbin/rmmod pcspkr |at now + 1 minutes"
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[Install]
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WantedBy=multi-user.target
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启用自定义服务并测试判断：
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sudo systemctl enable nobeep.service
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systemctl list-dependencies nobeep.service --reverse
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sudo systemctl start nobeep.service
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systemctl status nobeep.service
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