# ps
PID TTY TIME CMD
7431 pts/0 00:00:00 su
7434 pts/0 00:00:00 bash
18585 pts/0 00:00:00 ps
$ # 查找`firefox-bin`的PID为2701
$ ps -A | grep firefox-bin
2701 ? 22:16:04 firefox-bin
$ pgrep -l firefox-bin
2701 firefox-bin
# ps -U root -u
USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND
root 1 0.0 0.0 9436 128 - ILs Sun00AM 0:00.12 /sbin/init --