1、命令lsof,以查找占用端口80为例,用法如下:
[[email protected] nginx]# lsof -i:80 [[email protected] nginx]#
以上为没有进程占用80端口,
[[email protected] sbin]# lsof -i:80 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME nginx 8246 root 6u IPv4 64233 0t0 TCP *:http (LISTEN) nginx 8247 nobody 6u IPv4 64233 0t0 TCP *:http (LISTEN) [[email protected] sbin]#
以上为进程ID为8246和8247的nginx应用,占用80端口。
2、命令netstat,以查找占用80端口为例,用法如下:
[[email protected] sbin]# netstat -nlp|grep :80 tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 8246/nginx [[email protected] sbin]#
3、命令ps,可以查看已知进程PID的执行目录的详细信息
[[email protected] sbin]# ps -ef | grep 8246 root 8246 1 0 14:56 ? 00:00:00 nginx: master process ./nginx nobody 8247 8246 0 14:56 ? 00:00:00 nginx: worker process root 8461 2679 0 15:26 pts/1 00:00:00 grep 8246 [[email protected] sbin]# ps -x | grep 8246 Warning: bad syntax, perhaps a bogus ‘-‘? See /usr/share/doc/procps-3.2.8/FAQ 8246 ? Ss 0:00 nginx: master process ./nginx 8463 pts/1 S+ 0:00 grep 8246 [[email protected] sbin]#