logcat:tldr:a897e

This command is used to filter logcat output for a specific process ID (PID).

Here is a breakdown of the command:

1. logcat: It is a command-line tool that displays log messages from the system and applications running on an Android device. It allows capturing, viewing, and analyzing app logs for debugging purposes.

2. --pid=: This flag is used to specify the process ID for which logcat output should be filtered.

3. $(pidof -s ${package}): This is command substitution syntax in Bash. It executes the command pidof -s ${package} and replaces it with the result (which is the PID of the specified package).

• pidof is a command that is used to find the process ID of a running program given its name.
• -s is an option that tells pidof to only return a single PID if multiple instances of the program are running.
• ${package} is a variable that should be replaced with the name of the package you want to monitor.

So, combining all the elements, the command logcat --pid=$(pidof -s ${package}) will display logcat output only for the specified package's process ID.