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Does anybody knows a possibility to add a log entry into the logcat main log?

I need to inject an log line with custom text into this log on arbitrary devices.

The main problem is that I can't just install an own app that does inject the log entries. I need to create the log entry directly on adb.

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    Use the log commandline tool. – Irfan Latif Oct 8 '20 at 18:52
  • @IrfanLatif Thanks that looks good. Do you know if log universally available or do I have to expect device that don't support this command? – JMax Oct 9 '20 at 7:13
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    log is a toybox applet, available since Android 8: android.googlesource.com/platform/external/toybox/+/…. For older releases you can port the binary. It's very minimalistic. – Irfan Latif Oct 9 '20 at 9:47

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