tag 标记区分: adb shell logcat -s FaceProtocol:v
adb 输出到sdcard文件: adb logcat > /sdcard/log.txt
adb 输出文件到window:adb logcat > C:\Users\twl\Desktop\log\logcat.log
adb logcat -G 2m 出现read: unexpected EOF!
Android P remount
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$ adb root
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$ adb disable-verity
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$ adb reboot
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$ adb root
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$ adb remount
adb shell dumpsys battery set level 1 低电量
adb shell am broadcast -a xxxx 广播
echo 8 > /proc/sys/kernel/printk 设置打印等级
cat /sys/devices/platform/soc/usbc0/usb_device adb模式
cat /sys/devices/platform/soc/usbc0/usb_host u盘模式
reboot efex 进入uboot
echo 0 > /sys/fs/selinux/enforce 关闭安全检查,可以读写文件
adb shell "dumpsys window | grep mCurrentFocus"