psコマンド覚え書き

$ ps -e
  PID TTY           TIME CMD
    1 ??         7:27.63 /sbin/launchd
$ ps -ef
  UID   PID  PPID   C STIME   TTY           TIME CMD
    0     1     0   0 12 420  ??         7:27.63 /sbin/launchd