How can I erase the old data from logcat?

When I execute the command

adb logcat

while running the android emulator, all of the old logs blow past and so I figure they are stored in a file somewhere. Is there a command I can run to clear the logs and star开发者_如何学编程t fresh? If not, is there some other way to do this?

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Have you tried this?

 adb logcat -c

https://developer.android.com/studio/command-line/logcat.html

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adb logcat -c 

didn't do it for me

adb logcat -b all -c

worked

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Dup of How to empty (clear) the logcat buffer in Android

The following command will clear only non-rooted buffers (main, system ..etc).

adb logcat -c

If you want to clear all the buffers (like radio, kernel..etc), Please use the following commands

adb logcat -b all -c

or

adb root
adb shell logcat -b all -c 

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For me, adb logcat -c was not working and was giving following error :

failed to clear the 'main' log

For this, I first did :

adb shell

Than I did :

logcat -c

then exit the shell. This way I was able to clear logcat when same was not getting cleared from adb logcat -c