tldr/pages/android/logcat.md

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# logcat
> Dump a log of system messages, including stack traces when an error occurred, and information messages logged by applications.
> More information: <https://developer.android.com/studio/command-line/logcat>.
- Display system logs:
`logcat`
- Write system logs to a file:
`logcat -f {{path/to/file}}`
- Display lines that match a regular expression:
`logcat --regex {{regular_expression}}`
- Display logs for a specific PID:
`logcat --pid={{pid}}`
- Display logs for the process of a specific package:
`logcat --pid=$(pidof -s {{package}})`