ps -eo pid,comm,lstart,etime,time,args
Este comando lista todos os processos com várias colunas diferentes relacionadas ao tempo. canalize-o para grep ffmpeg
para descobrir o seu processo de interesse.
A saída do comando anterior tem as seguintes colunas:
PID COMMAND STARTED ELAPSED TIME COMMAND
de acordo com o ps man
PID = Process ID
first COMMAND = only the command name without options and without arguments
STARTED = the absolute time the process was started
ELAPSED = elapsed time since the process was started (wall clock time), format [[dd-]hh:]mm:ss TIME = cumulative CPU time, "[dd-]hh:mm:ss" format
second COMMAND = again the command, this time with all its provided options and arguments