Android - ADB

Agenda
▣ what is adb
▣ adb commands
▣ adb scripts
▣ adb files
▣ adb over WiFi
▣ screen capture/record
▣ logcat
▣ shell command
□ am
□ pm
□ dumpsys
□ more…

What is ADB
▣ Android Debug Bridge (adb) is a versatile command
line tool that lets you communicate with an emulator
instance or connected Android-powered device.

3 elements of ADB
▣ adb clients
□ executable with subcommand
□ ”adb shell”, ”adb logcat” : the end point of host side
▣ adb server
□ running on host on back-ground
□ act as proxy between adb clients and adbd
▣ adb daemon (adbd)
□ running on target device
□ started by init, if die, restarted by init again

ADB Commands
▣ adb devices
□ Print All the connected devices
▣ adb shell
□ run remote shell interactively
▣ adb jdwp
□ list PIDs of processes hosting a JDWP transport
▣ adb install/uninstall
□ un/install the application
▣ adb start-server
□ ensure that there is a server running
▣ adb kill-server
□ kill the server if it is running

Adb scripts
▣ adb wait-for-device
□ block until device is online
▣ adb start-server
□ ensure that there is a server running
▣ adb kill-server
□ kill the server if it is running
▣ adb get-state
□ prints: offline | bootloader | device
▣ adb get-serialno
□ prints: <serial-number>
▣ adb get-devpath
□ prints: <device-path>

Adb scripts
▣ adb status-window
□ continuously print device status for a specified device
▣ adb remount
□ remounts the /system and /vendor (if present) partitions on
the device read-write
▣ adb reboot [bootloader|recovery]
□ reboots the device, optionally into the bootloader or
recovery program
▣ adb reboot-bootloader -
□ reboots the device into the bootloader
▣ adb root
□ restarts the adbd daemon with root permissions
▣ adb usb
□ restarts the adbd daemon listening on USB

Adb - Files
▣ Copy file to device
□ adb push <local> <remote>
▣ Copy file from device
□ adb pull <remote> <local>

adb over WiFi
▣ Android Device
□ adb shell netcfg
 get the android IP address (x.x.x.x)
□ adb shell setprop service.adb.tcp.port 5555
□ adb shell stop adbd && start adbd
▣ PC device
□ adb connect x.x.x.x
□ adb -s x.x.x.x:5555 logcat
□ adb -s x.x.x.x:5555 logcat |grep -vE "/dalvik"
□ adb -s x.x.x.x:5555 shell

BugReport
▣ Command
□ adb shell bugreport > bugreport.txt
□ java -jar chkbugreport.jar bugreport.txt
▣ JAR download
□ https://github.com/sonyxperiadev/ChkBugReport/download
s

ScreenCapture
▣ Command:
□ adb shell screencap -p /sdcard/screen.png
□ adb pull /sdcard/screen.png
□ adb shell rm /sdcard/screen.png
▣ Other way
□ adb shell screencap -p | sed 's/r$//' > screen.png
□ adb shell screencap -p | perl -pe 's/x0Dx0A/x0A/g' >
screen.png

ScreenRecord
▣ Command:
□ adb shell screenrecord /sdcard/recording.mp4
□ adb pull /sdcard/recording.mp4
□ adb shell rm /sdcard/recording.mp4

Adb Key Event
▣ Power Button
□ adb shell input keyevent 26
▣ Unlock screen
▣ Volume down
▣ List of Keyevent
□ http://developer.android.com/reference/android/view/KeyEv
ent.html

Logcat - Logging
▣ Filter by tagname
□ adb logcat -s TAG_NAME
□ adb logcat -s TAG_NAME_1 TAG_NAME_2
▣ Filter by priority
□ adb logcat "*:PRIORITY"
 V - Verbose (lowest priority)
 D - Debug
 I - Info
 W - Warning
 E - Error
 F - Fatal
 S - Silent (highest priority, on which nothing is ever
printed)

Logcat - Logging
▣ Filter using grep
□ adb logcat | grep "SEARCH_TERM"
□ Example
 adb logcat | grep "Exception"
▣ Clearing the logcat buffer
□ adb logcat -c

Logcat - Buffers
▣ radio - adb command “”
□ View the buffer that contains radio/telephony related
messages.
▣ events
□ View the buffer containing events-related messages.
▣ main
□ View the main log buffer (default)
Run Command “logcat -b <buffer>”

Shell Commands
▣ dumpstate
□ Dumps state to a file.
▣ dmesg
□ Prints kernel debugging messages to the screen
▣ start
□ Starts an emulator/device instance.
▣ stop
□ Stops execution of an emulator/device instance.
▣ restart
□ restart an emulator/device instance.

Shell Commands
▣ top
□ Prints all the running tasks on your device
▣ Service
□ Help to communicate with phone services
 service list
 service check <SERVICE_NAME>
 service call <SERVICE_NAME> CODE

Shell Commands - More
▣ More Commands
□ adb shell ls /system/bin

AM - Activity Manager
▣ Start Activity
□ am start <packageName/.ActivityClass>
▣ Start/Stop Service
□ am startservice -n <packageName/.ServiceClass>
□ am stopservice -n <packageName/.ServiceClass>
▣ Send broadcast
□ am broadcast -a <action_name>
▣ Users
□ am switch-user <USER_ID>
□ am start-user <USER_ID>
□ am stop-user <USER_ID>
▣ More Commands
▣ adb shell am

PM - Package Manager
▣ pm list packages
▣ pm list permission-groups
▣ pm list users
▣ pm install
▣ pm create-user
▣ pm remove-user USER_ID
▣ pm get-max-users
▣ More Commands
▣ adb shell pm

Dumpsys
▣ dumpsys
□ will show all system data from the device
▣ you can filter it by adding
□ dumpsys activity
□ dumpsys batterystats
□ dumpsys cpuinfo
□ dumpsys wifi
□ dumpsys meminfo
□ dumpsys package ‘package’
▣ More:
□ adb shell dumpsys -l

Joke commands
▣ adb hell
□ same as ”adb shell” except ”hell” color :)
▣ adb lolcat
□ same as ”adb logcat”

Task #1
1. Open Settings Application
a. main application
2. Open Settings In Inner Activity
a. WifiSettings

Task #2
1. Get System Application to pc
a. Dialer.apk

Task #3
1. Open my Application with intent and extra
a. extra keys
i. string
ii. bool
iii. float
iv. string_array
▣ Download Apk
□ https://goo.gl/IWTGle
▣ Code reference
□ https://github.com/yossigruner/AdbSession

Task #4
1. enable the NFC
2. disable the NFC

Answers
▣ Task #1
□ adb shell am start -S com.android.settings/com.android.settings.Settings
□ adb shell am start -a android.intent.action.MAIN -n
com.android.settings/.wifi.WifiSettings
▣ Task #2
□ adb root
□ adb remount
□ adb pull /system/priv-app/Dialer/Dialer.apk
▣ Task #3
□ adb shell am start -n com.mike.adbsession/com.mike.adbsession.MainActivity --ez
bool false --ef float 1.999 --es string hello --esa string_array hello,world
▣ Task #4
□ enable - service call nfc 6
□ disable - service call nfc 5

References
▣ https://community.woodwing.net/sites/default/files/A
ndroid%20Debug%20Bridge%20%7C%20Android%
20Developers.pdf
▣ https://source.android.com/devices/tech/debug/dum
psys.html

Thanks!Any questions?
yossigruner@gmail.com

Android - ADB

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