From Android Wiki
What is ADB
ADB (Android Debug Bridge) is a tool that comes with the Android SDK that allows you to control and interface with your Android device. It is located in the tools folder when you unpack the SDK.
Adb has many built in commands. Some are interactive (meaning they keep running until you stop them) and some just perform a simple task. Below is a list of the commands in the 1.0 SDK version of adb.
Android Debug Bridge version 1.0.20 -d - directs command to the only connected USB device returns an error if more than one USB device is present. -e - directs command to the only running emulator. returns an error if more than one emulator is running. -s <serial number> - directs command to the USB device or emulator with the given serial number -p <product name or path> - simple product name like 'sooner', or a relative/absolute path to a product out directory like 'out/target/product/sooner'. If -p is not specified, the ANDROID_PRODUCT_OUT environment variable is used, which must be an absolute path. devices - list all connected devices device commands: adb push <local> <remote> - copy file/dir to device adb pull <remote> <local> - copy file/dir from device adb sync [ <directory> ] - copy host->device only if changed (see 'adb help all') adb shell - run remote shell interactively adb shell <command> - run remote shell command adb emu <command> - run emulator console command adb logcat [ <filter-spec> ] - View device log adb forward <local> <remote> - forward socket connections forward specs are one of: tcp:<port> localabstract:<unix domain socket name> localreserved:<unix domain socket name> localfilesystem:<unix domain socket name> dev:<character device name> jdwp:<process pid> (remote only) adb jdwp - list PIDs of processes hosting a JDWP transport adb install [-l] [-r] <file> - push this package file to the device and install it ('-l' means forward-lock the app) ('-r' means reinstall the app, keeping its data) adb uninstall [-k] <package> - remove this app package from the device ('-k' means keep the data and cache directories) adb bugreport - return all information from the device that should be included in a bug report. adb help - show this help message adb version - show version num DATAOPTS: (no option) - don't touch the data partition -w - wipe the data partition -d - flash the data partition scripting: 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-product - prints: <product-id> adb get-serialno - prints: <serial-number> adb status-window - continuously print device status for a specified device adb remount - remounts the /system partition on the device read-write networking: adb ppp <tty> [parameters] - Run PPP over USB. Note: you should not automatically start a PDP connection. <tty> refers to the tty for PPP stream. Eg. dev:/dev/omap_csmi_tty1 [parameters] - Eg. defaultroute debug dump local notty usepeerdns adb sync notes: adb sync [ <directory> ] <localdir> can be interpreted in several ways: - If <directory> is not specified, both /system and /data partitions will be updated. - If it is "system" or "data", only the corresponding partition is updated.
Some of the more common commands in adb are push, pull, shell, install, remount, and logcat.
Push sends a file from your desktop computer to your Android device:
adb push test.txt /sdcard/test.txt
Pull pulls a file from your Android device to your desktop computer:
adb pull /sdcard/test.txt test.txt
Shell lets you run an interactive shell (command prompt) on the Android device:
Install lets you install an android APK file to your Android device:
adb install myapp.apk
Remount remounts the /system partition as writable (or readonly if it is already writeable):
Logcat lets you view the devices debug logs in real time (must press control+c to exit):