1、显示当前所有进程
SDCxM-SDCAM-root-root> ps aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 2848 604 ? Ss 00:00 0:02 init
root 2 0.0 0.0 0 0 ? S 00:00 0:00 [kthreadd]
root 3 0.0 0.0 0 0 ? S 00:00 0:02 [ksoftirqd/0]
root 4 0.0 0.0 0 0 ? S 00:00 0:00 [kworker/0:0]
root 5 0.0 0.0 0 0 ? S 00:00 0:00 [kworker/u:0]
root 6 0.0 0.0 0 0 ? S 00:00 0:00 [posixcputmr/0]
root 7 0.0 0.0 0 0 ? S 00:00 0:00 [migration/0]
2、同时查找多个进程，例如 kthreadd 和 migration/0 进程
SDCxM-SDCAM-root-root> ps aux | grep -E 'kthreadd|migration/0' //查找多个字符串的匹配（grep -E相当于egrep）
root 2 0.0 0.0 0 0 ? S 00:00 0:00 [kthreadd]
root 7 0.0 0.0 0 0 ? S 00:00 0:00 [migration/0]
root 6031 0.0 0.0 2856 404 pts/0 S+ 04:20 0:00 grep -E kthreadd|migration/0
SDCxM-SDCAM-root-root>