Debug Bridge (adb)
Logging
Android Debug Bridge, Enabling logcat Logging
To view the log for the currently running emulator:
cd adt-bundle-linux-x86_64/sdk/platform-tools/
./adb logcat
Note: If using Eclipse, you can access logging through the DDMS perspective.
Filtering
Here’s an example of a filter expression that suppresses all log messages
except those with the tag “ActivityManager”, at priority “Info” or
above, and all log messages with tag “MyApp”, with priority “Debug” or
above. The final element in the expression, *:S, sets the priority level
for all other tags to “silent”:
adb logcat ActivityManager:I MyApp:D *:S