How can I erase the old data from logcat?

问题

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 start fresh? If not, is there some other way to do this?

回答1:

Have you tried this?

 adb logcat -c

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

回答2:

adb logcat -c 

didn't do it for me

adb logcat -b all -c

worked

回答3:

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 

来源：https://stackoverflow.com/questions/2657348/how-can-i-erase-the-old-data-from-logcat