ps -C | 3966

[root@Nginx_BackUP keepalived]# ps -C nginx

  PID TTY          TIME CMD

 3965 ?        00:00:00 nginx

 3966 ?        00:00:00 nginx

 3968 ?        00:00:01 nginx

[root@Nginx_BackUP keepalived]# ps -C nginx  --no-header

 3965 ?        00:00:00 nginx

 3966 ?        00:00:00 nginx

 3968 ?        00:00:01 nginx

#-C 接命令的名称 可查PID跟pgrep 差不多

[root@Nginx_BackUP keepalived]# pgrep nginx

3965

3966

3968