leng_feng_jing
leng_feng_jing
2017-02-01 02:56
采纳率: 50%
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Linux下如何在程序中关机

买了树莓派为了防止板子温度过高,想写个开机自启程序,当CPU温度超过85℃时自动关机

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2条回答 默认 最新

  • fight_in_dl
    战在春秋 2017-02-01 08:33
    已采纳

    在论坛上找到一个范例,希望有帮助:

    #!/bin/sh
    #  This script reads the Broadcom SoC temperature value and shuts down if it 
    #  exceeds a particular value.
    #  80ºC is the maximum allowed for a Raspberry Pi.
    
    # Get the reading from the sensor and strip the non-number parts
    SENSOR="`/opt/vc/bin/vcgencmd measure_temp | cut -d "=" -f2 | cut -d "'" -f1`"
    # -gt only deals with whole numbers, so round it.
    TEMP="`/usr/bin/printf "%.0f\n" ${SENSOR}`"
    # How hot will we allow the SoC to get?
    MAX="78"
    
    if [ "${TEMP}" -gt "${MAX}" ] ; then
     # This will be mailed to root if called from cron
     echo "${TEMP}ºC is too hot!"
     # Send a message to syslog
     /usr/bin/logger "Shutting down due to SoC temp ${TEMP}."
     # Halt the box
     /sbin/shutdown -h now
     else
      exit 0
    fi
    
    
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  • oyljerry
    oyljerry 2017-02-01 07:13

    可以调用shutdown命令来关机

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