在特定时间自动睡眠和唤醒

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在特定时间自动睡眠和唤醒

2023-08-14 05:43| 来源: 网络整理| 查看: 265

rtcake

您感兴趣的命令是rtcwake：

该程序用于进入系统睡眠状态，直到指定的唤醒时间为止。

测试

要找到适合您的正确语法，请尝试以下操作：

sudo rtcwake -u -s 60 -m mem

在恢复之前，这会使计算机暂停60秒。重要的参数是：mem 您可以选择几个选项-播放以找到最适合您的值：

standby ACPI state S1. This state offers minimal, though real, power savings, while providing a very low-latency transi‐ tion back to a working system. This is the default mode. mem ACPI state S3 (Suspend-to-RAM). This state offers signif‐ icant power savings as everything in the system is put into a low-power state, except for memory, which is placed in self-refresh mode to retain its contents. disk ACPI state S4 (Suspend-to-disk). This state offers the greatest power savings, and can be used even in the absence of low-level platform support for power manage‐ ment. This state operates similarly to Suspend-to-RAM, but includes a final step of writing memory contents to disk. off ACPI state S5 (Poweroff). This is done by calling '/sbin/shutdown'. Not officially supported by ACPI, but usually working. no Don't suspend. The rtcwake command sets RTC wakeup time only. on Don't suspend, but read RTC device until alarm time appears. This mode is useful for debugging. 暂停直到已知时间

脚本（位于本文的底部）可用于挂起计算机并在特定时间唤醒：

语法suspend_until [hh:mm]例如

sudo ./suspend_until 07:30

将脚本另存为名称suspend_until并赋予其执行权限，即

chmod +x suspend_until 克朗

您可以创建一个根cron作业，调用此脚本在晚上的特定时间执行，然后在早晨清醒：

sudo crontab -e

现在输入类似于在23:30运行悬浮脚本的内容：

30 23 * * * /home/myhomefolder/suspend_until 07:30 suspend_until脚本 #!/bin/bash # Auto suspend and wake-up script # # Puts the computer on standby and automatically wakes it up at specified time # # Written by Romke van der Meulen # Minor mods fossfreedom for AskUbuntu # # Takes a 24hour time HH:MM as its argument # Example: # suspend_until 9:30 # suspend_until 18:45 # ------------------------------------------------------ # Argument check if [ $# -lt 1 ]; then echo "Usage: suspend_until HH:MM" exit fi # Check whether specified time today or tomorrow DESIRED=$((`date +%s -d "$1"`)) NOW=$((`date +%s`)) if [ $DESIRED -lt $NOW ]; then DESIRED=$((`date +%s -d "$1"` + 24*60*60)) fi # Kill rtcwake if already running sudo killall rtcwake # Set RTC wakeup time # N.B. change "mem" for the suspend option # find this by "man rtcwake" sudo rtcwake -l -m mem -t $DESIRED & # feedback echo "Suspending..." # give rtcwake some time to make its stuff sleep 2 # then suspend # N.B. dont usually require this bit #sudo pm-suspend # Any commands you want to launch after wakeup can be placed here # Remember: sudo may have expired by now # Wake up with monitor enabled N.B. change "on" for "off" if # you want the monitor to be disabled on wake xset dpms force on # and a fresh console clear echo "Good morning!"

mem在脚本的这一部分中更改适合您的任何暂停方法：

# Set RTC wakeup time sudo rtcwake -l -m mem -t $DESIRED &

根据您的硬件时钟使用的是UTC（）还是本地（）时间，您可能还必须用该-u标志代替该-l标志。请注意，您的硬件时钟与您在操作系统中看到的系统时钟不同。-u-l

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在特定时间自动睡眠和唤醒

在特定时间自动睡眠和唤醒

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