ps
Table of Contents
1. Usage
BSD style
ps auxf
Custom columns + grepping the heading
ps xao pid,ppid,pgid,sid,comm|rg "PID|[command_name_something]"
2. Debugging
wchan
represents the name of the kernel function on which the process is waiting. Helpful to check stuck processes.ps -p [PID] -o pid,state,command,wchan