linux 通过端口查看进程 /通过pid查看进程/通过pid

1. 首先通过端口号查询pid， 然后通过pid查询进程

通过port查pid
lsof -i:port  // lsof -i:8080 // 通过端口获取pid
ps -ef |grep pid  // 查看进程
netstat -nap|grep port

ll /proc/pid/cwd // 查看服务目录

netstat -nap|grep pid  // 通过pid查询端口号

#netstat -nap|grep 8788
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 0.0.0.0:8788            0.0.0.0:*               LISTEN      11651/java

# lsof -i:8788
COMMAND   PID     USER   FD   TYPE     DEVICE SIZE/OFF NODE NAME
java    11651 guest   45u  IPv4 3536290374      0t0  TCP *:8788 (LISTEN)

 # ps -ef|grep 11651
guest 11651  5912  7 10:25 ?        00:29:29 /usr/local/java/jdk1.8.0_201/bin/java  -jar demo-3.0.0.10-release.jar --spring.profiles.active=prd
guest  28844 25993  0 17:20 pts/0    00:00:00 grep --color=auto 11651

# ll /proc/11651/cwd
lrwxrwxrwx 1 demo gou 0 Apr 12 10:25 /proc/11651/cwd -> /data/demo/demo_api

]$ netstat -nap|grep 11651
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 0.0.0.0:8781            0.0.0.0:*               LISTEN      11651/java
tcp       32      0 172.116.42.25:44508     117.81.33.175:8743     CLOSE_WAIT  11651/java
tcp        0      0 172.116.42.25:54118     172.16.6.58:6379       ESTABLISHED 11651/java
tcp        0      0 172.116.42.25:57874     172.16.49.140:3306     ESTABLISHED 11651/java
tcp        0      0 172.116.42.25:47998     172.16.49.140:3306     ESTABLISHED 11651/java
tcp        0      0 172.116.42.25:55972     172.16.6.58:6379       ESTABLISHED 11651/java
tcp        0      0 172.116.42.25:51352     172.16.1.5:3306        ESTABLISHED 11651/java
tcp        0      0 172.116.42.25:55974     172.16.26.8:6379       ESTABLISHED 11651/java
tcp        0      0 172.116.42.25:57698     172.16.26.58:6379       ESTABLISHED 11651/java
tcp       32      0 172.116.42.25:41702     47.111.51.31:443        CLOSE_WAIT  11651/java
tcp        0      0 172.116.42.25:54594     172.16.6.58:6379       ESTABLISHED 11651/java
tcp        0      0 172.116.42.25:54592     172.16.6.58:6379       ESTABLISHED 11651/java
tcp        0      0 172.116.42.25:55970     172.16.6.58:6379       ESTABLISHED 11651/java
tcp        0      0 172.116.42.25:48002     172.16.49.40:3306     ESTABLISHED 11651/java
unix  2      [ ]         STREAM     CONNECTED     3536288174 11651/java
unix  2      [ ]         STREAM     CONNECTED     3536289162 11651/java