How to save LogCat contents to file

Question

I ve added debug strings  using Log d    and want to see them in context from the contents of logCat  The  save  icon for LogCat has a  Save selected items  hint  but there s got to be a quick way to just save the entire contents  or select the entire contents  but I don t see how to do it

User · Answer

In addition to answer by Dinesh Prajapati, Use

 adb -d logcat <your package name>:<log level>

where -d is for device and you may also choose -e instead for emulator log and log level is a/d/i/v/e/w etc.

Now your command goes like:

adb -d logcat com.example.example:V > logfileName_WithPath.txt

User · Answer

Open command prompt and locate your adb exe it will be in your android-sdk platform-tools   adb logcat -d  gt   lt path-where-you-want-to-save-file gt  filename txt  If you omit path  it will save logcat in current working directory  The -d option indicates that you are dumping the current contents and then exiting   Prefer notepad   to open this file so that you can get everything in a proper readable format

User · Answer

Additional tip for the programmatic approach   String filePath   Environment getExternalStorageDirectory       logcat txt   Runtime getRuntime   exec new String    logcat    -f   filepath   MyAppTAG V      S       This opens a continuous output stream between logcat and the file provided  This can result in a deadlock if you then waitFor the Process returned by exec  or an exception if the provided file is prematurely disposed   I found that including the  -d  flag simply dumps logcat and closes the connection  which prevents the above behavior

User · Answer

You are not getting the answer you are looking for  are you   Two ways to do what you want    Right-click in the logcat messages window  choose select all   Then your save will be all logcat messages in that window  including the ones scrolled out of view     When focus is in logcat messages window  type control-A  this will select all messages   Then save etc  etc

User · Answer

Click in the logcat window  on a log even   Followed by  quot Ctrl   A quot   select all   Then either  quot Right click with the mouse quot  or  quot Ctrl  C quot   copy   Then paste it anywhere you like using any editor you like  One could also delete the logcat output before the logs relevant to us appear  before we start testing our use case  to get only relevant logs in the logcat

User · Answer

Use logcat tool with -d or -f  switch and exec   method   Saving to a file on the host computer   exec   adb logcat -d  gt  logcat log       logcat is written to logcat log file on the host    If you are just saving to a file on the device itself  you can use   exec   adb logcat -f logcat log       logcat is written to logcat log file on the device

User · Answer

To save the Log cat content to the file  you need to redirect to the android sdk s platform tools folder and hit the below command  adb logcat  gt  logcat txt   In Android Studio  version 3 6RC1  file will be created of the name  logcat txt  in respective project folder  you can change the name according to your interest  enjoy

User · Answer

To save LogCat log to file programmatically on your device use for example this code   String filePath   Environment getExternalStorageDirectory       logcat txt   Runtime getRuntime   exec new String    logcat    -f   filepath   MyAppTAG V      S        MyAppTAG V  sets the priority level for all tags to Verbose  lowest priority      S  sets the priority level for all tags to  silent   More information about logcat here

User · Answer

String filePath   folder getAbsolutePath      logcat txt    Runtime getRuntime   exec new String    logcat    -f   filePath   MyAppTAG V      E

User · Answer

An additional tip if you want only the log shown in the past half hour with timestamps  or within another set time  Adjust date format to match your system  This one works on Ubuntu 16 04LTS   adb shell logcat -d -v time -t    date    m- d  H  M  S  3N  -d  30 minutes ago     gt  log name log

User · Answer

If you are in the console window for the device and if you use Teraterm  then from the Menu do a File   Log and it will automatically save to file

[android] How to save LogCat contents to file?

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