tcp状态统计脚本

最新推荐文章于 2025-08-13 18:52:29 发布

转载最新推荐文章于 2025-08-13 18:52:29 发布 · 108 阅读

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原文链接：http://www.cnblogs.com/qingchen-24K/p/7245063.html

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#网络 #awk

本文介绍了一个用于统计TCP连接状态的bash脚本。该脚本能够获取并输出系统中处于不同状态（如SYN-RECV、ESTAB等）的TCP连接数量。通过调用此脚本，可以方便地监控和诊断网络连接问题。

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tcp_status_ss.sh

#!/bin/bash 
#scripts for tcp status 
function SYNRECV { 
    n=`/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s[k]}' | grep 'SYN-RECV' | awk '{print $2}'`
    if [ "x$n" == "x" ]; then echo 0; else echo $n; fi
} 
function ESTAB { 
    n=`/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s[k]}' | grep 'ESTAB' | awk '{print $2}'`
    if [ "x$n" == "x" ]; then echo 0; else echo $n; fi
} 
function FINWAIT1 { 
    n=`/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s[k]}' | grep 'FIN-WAIT-1' | awk '{print $2}'`
    if [ "x$n" == "x" ]; then echo 0; else echo $n; fi
} 
function FINWAIT2 { 
    n=`/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s[k]}' | grep 'FIN-WAIT-2' | awk '{print $2}'`
    if [ "x$n" == "x" ]; then echo 0; else echo $n; fi
} 
function TIMEWAIT { 
    n=`/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s[k]}' | grep 'TIME-WAIT' | awk '{print $2}'`
    if [ "x$n" == "x" ]; then echo 0; else echo $n; fi
} 
function LASTACK { 
    n=`/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s[k]}' | grep 'LAST-ACK' | awk '{print $2}'`
    if [ "x$n" == "x" ]; then echo 0; else echo $n; fi
} 
function LISTEN { 
    n=`/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s[k]}' | grep 'LISTEN' | awk '{print $2}'`
    if [ "x$n" == "x" ]; then echo 0; else echo $n; fi
} 
function CLOSE-WAIT { 
    n=`/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s[k]}' | grep 'CLOSE-WAIT' | awk '{print $2}'`
    if [ "x$n" == "x" ]; then echo 0; else echo $n; fi
}
function CLOSING { 
    n=`/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s[k]}' | grep 'CLOSING' | awk '{print $2}'`
    if [ "x$n" == "x" ]; then echo 0; else echo $n; fi
}
function ALL {
    /usr/sbin/ss -ant | wc -l
}

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