Linux系统中查看父进程ID,进程ID,进程组ID,会话ID的方法:ps ajx
[ycxie@localhost Workspace]$ ps ajx
PPID PID PGID SID TTY TPGID STAT UID TIME COMMAND
0 1 1 1 ? -1 Ss 0 0:02 /usr/lib/systemd/systemd --switched-root --system -
0 2 0 0 ? -1 S 0 0:00 [kthreadd]
2 3 0 0 ? -1 I< 0 0:00 [rcu_gp]
2 4 0 0 ? -1 I< 0 0:00 [rcu_par_gp]
2 6 0 0 ? -1 I< 0 0:00 [kworker/0:0H-events_highpri]
2 9 0 0 ? -1 I< 0 0:00 [mm_percpu_wq]
2 10 0 0 ? -1 S 0 0:00 [ksoftirqd/0]
2 11 0 0 ? -1 I 0 0:00 [rcu_sched]
2 12 0 0 ? -1 S 0 0:00 [migration/0]
2 13 0 0 ? -1 S 0 0:00 [cpuhp/0]
2 14 0 0 ? -1 S 0 0:00 [cpuhp/1]
2 15 0 0 ? -1 S 0 0:00 [migration/1]
2 16 0 0 ? -1 S 0 0:00 [ksoftirqd/1]
2 18 0 0 ? -1 I< 0 0:00 [kworker/1:0H-kblockd]
2 19 0 0 ? -1 S 0 0:00 [cpuhp/2]
2 20 0 0 ? -1 S 0 0:00 [migration/2]