adb: Find PID from the adb shell

Question

I am trying to get the PID of the process INSIDE adb shell. So, I am doing adb shell which gets me to the android shell. Now, if I were to get the PID using a regular shell

Answer 1

Android versions starting with 6.0 already include pidof utility:

usage: pidof [-s] [-o omitpid[,omitpid...]] [NAME]...

Print the PIDs of all processes with the given names.

-s      single shot, only return one pid.
-o      omit PID(s)