PID  PPID CMD
    1     0 /bin/bash /init irc
    2     0 [kthreadd]
    3     2 [pool_workqueue_release]
    4     2 [kworker/0:0-events]
    5     2 [kworker/0:0H]
    6     2 [kworker/0:1]
    7     2 [kworker/u4:0-events_unbound]
    8     2 [kworker/R-mm_percpu_wq]
    9     2 [ksoftirqd/0]
   10     2 [oom_reaper]
   11     2 [kworker/R-writeback]
   12     2 [kworker/R-kblockd]
   13     2 [irq/9-acpi]
   14     2 [kswapd0]
   15     2 [kworker/u4:1-events_unbound]
   16     2 [kworker/u4:2-events_unbound]
   30     1 bash -l
   34    30 ps -eo pid,ppid,cmd