ADB instruction sorting

【 Reference documents 】
[1] Google Doc

1. brief introduction
ADB, namely Android Debug Bridge It is a kind of simulator or connected Android Command line tool for device communication .

2. The main function
The bridge between mobile terminal and client .
（1） Run on the device Shell command ;
（2） Will local APK The software is installed into the simulator or Android equipment ;
（3） Manage scheduled ports on the device or phone emulator .

3. form
（1） client
eg. mobile phone
This component sends commands . The client runs on the development computer . You can send adb The command calls the client from the command line terminal .
（2） daemon
eg. Functional procedures
This component runs commands on the device . The daemon runs as a daemon on each emulator or device instance .
（3） The server
eg. Computer
This component manages the communication between the client and the daemon . The server runs as a background process on the development computer .

4. Commonly used instructions

command	function
adb help	adb documentation
adb device	Check the connected device number
adb shell	Get into adb The first instruction before debugging
adb install apk Package name	In the computer apk Install the file to the mobile terminal
adb root	root mobile phone , Superuser rights
adb reboot	Restart the phone
adb remount	Have the permission to replace files
adb push < Computer path > < Mobile path >	Upload files from your computer to your mobile phone
adb pull< Mobile path >< Computer path >	Copy the files on your mobile phone to your computer

notes ：adb remount’ take ‘/system’ Partially placed in writable mode , By default ‘/system’ Part is read-only . Applied to the default scenario of the system .
This command only applies to those that have been root The equipment .‘adb remount’ Is equivalent to ‘adb shell mount -o rw,remount,rw /system’.

5. What happened
（1） If the connection is not successful
Restart your phone or computer ,adb start-serve End of the first adb service ,adb kill-serve Reopen adb service .
（2）adb The authority is wrong
adb: error: stat failed when trying to push to /product/overlay/: Permission denied

adb root   obtain root jurisdiction 
adb disable-verity   Turn off the partition detection function 
adb reboot   perform adb disable-verity You need to restart the device after 
adb root    Get again after device restart root jurisdiction 
adb remount   send system The partition is in read-write mode