获取所有 tcp 监听进程的详细信息

Question

#! /bin/bash

a=`netstat -plant | grep -i listen`

#to get ip and port
b=`echo $a | awk {'print $4}'`

#to get the process id
c=`echo $a | awk {'print $7}' | awk -F '/' {'print $1'}`
set -- $c

#to get the details of process
g=`ps aux | grep $1`

m=`echo $g | awk {'print $2}'`
n=`echo $g | awk {'print $9}'`
o=`echo $g | awk {'print $11}'`


echo The process with PID $m invoked by command "$o", is listening at IP and Port : $b . The process has been running since $n

我试图制作一个脚本来以一种简单的语言显示 PID、IP、端口、运行以来的详细信息以及所有 tcp 侦听进程的命令。我制作的脚本只给出了 1 个进程的详细信息

Answer 1

您只需使用while read 构造将分配更改为a：

netstat -plant | grep -i listen | while read a; do

    #to get ip and port
    b=`echo $a | awk {'print $4}'`

    #to get the process id
    c=`echo $a | awk {'print $7}' | awk -F '/' {'print $1'}`
    set -- $c

    #to get the details of process
    g=`ps aux | grep $1`

    m=`echo $g | awk {'print $2}'`
    n=`echo $g | awk {'print $9}'`
    o=`echo $g | awk {'print $11}'`

    echo The process with PID $m invoked by command "$o", is listening at IP and Port : $b . The process has been running since $n

done

这个结构会一次一行地将 grep 的输出读取到 a 变量中。