Android dumpsys 命令解析

Android 有一个很有意思，也很有用的命令：dumpsys，它可以 取出一些系统信息。虽然它只是在命令行里显示，但是有一些技术点应该被采用、充实。如果你想得到所有的Android系统信息，包括第三方应用的信息，那么如下命令，你必不可少：

adb shell dumpsys

你也可以用 filters 来运行这些服务:

1 SurfaceFlinger 2 accessibility 3 account 4 activity 5 alarm 6 appwidget 7 audio 8 backup 9 battery 10 batteryinfo 11 bluetooth 12 bluetooth_a2dp 13 clipboard 14 connectivity 15 content 16 cpuinfo 17 device_policy

18 devicestoragemonitor 19 diskstats 20 dropbox 21 entropy 22 ethernet 23 hardware 24 input_method 25 iphonesubinfo 26 isms 27 keybar 28 location 29 media.audio_flinger 30 media.audio_policy 31 media.camera 32 media.player 33 meminfo 34 mount 35 netstat

36 network_management 37 notification 38 package 39 permission 40 phone 41 power 42 search 43 sensorservice 44 simphonebook 45 statusbar 46 telephony.registry 47 throttle 48 uimode 49 usagestats 50 vibrator 51 wallpaper 52 wifi 53 window

举例:

adb shell dumpsys wifi

adb shell dumpsys cpuinfo

I suggest you try other items on the list above and be creative using all the power of Unix pipes. Example, to get all memory allocated by each process you can do something like:

adb shell dumpsys meminfo | grep "allocated:" | awk '{total = total + $5}END{print total}'