Filter output in logcat by tagname

AndroidLogcatAndroid Logcat

Android Problem Overview

I'm trying to filter logcat output from a real device (not an emulator) by tag name but I get all the messages which is quite a spam. I just want to read messages from browser which should be something like "browser:" or "webkit:" , but it doesn't work... Here it is what I get:

actual output

Android Solutions

Solution 1 - Android

use this:

adb logcat -s "TAGNAME"

Solution 2 - Android

In case someone stumbles in on this like I did, you can filter on multiple tags by adding a comma in between, like so:

adb logcat -s "browser","webkit"

Solution 3 - Android

Another option is setting the log levels for specific tags: 

adb logcat SensorService:S PowerManagerService:S NfcService:S power:I Sensors:E

If you just want to set the log levels for some tags you can do it on a tag by tag basis.

Solution 4 - Android

Do not depend on ADB shell, just treat it (the adb logcat) a normal linux output and then pip it:

$ adb shell logcat | grep YouTag
# just like: 
$ ps -ef | grep your_proc

Solution 5 - Android

Here is how I create a tag:

private static final String TAG = SomeActivity.class.getSimpleName();
 Log.d(TAG, "some description");

You could use getCannonicalName

Here I have following TAG filters:

  • any (*) View - VERBOSE
  • any (*) Activity - VERBOSE
  • any tag starting with Xyz(*) - ERROR
  • System.out - SILENT (since I am using Log in my own code)

Here what I type in terminal:

$  adb logcat *View:V *Activity:V Xyz*:E System.out:S
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QuestionmunchView Question on Stackoverflow
Solution 1 - AndroidsatView Answer on Stackoverflow
Solution 2 - AndroidaarislarsenView Answer on Stackoverflow
Solution 3 - AndroidmkobitView Answer on Stackoverflow
Solution 4 - AndroidSiweiView Answer on Stackoverflow
Solution 5 - Androiduser3566154View Answer on Stackoverflow