Shell Statistics current network connection status

When the number of TCP connections is very large, the current internal IP, the connection of the external IP is counted

[[email protected] account_tcp]# cat account_tcp.sh #!/bin/bash# Statistics the current network connection situation Netstat  -na | awk  '/^tcp/{s[$6]++}end{for (key in s) Print key,s[key]} '  >  /root/account_tcp/state.txt# statistics local address TCP connection number netstat -na | awk  '/^tcp/'  | awk -v fs= "[ :]+"   ' {print $4} '  | sort | uniq -c  | sort -n > /root/account_tcp/local_address.txt# statistics IP is 51 foreign  Address TCP connection Condition netstat -na | awk  '/^tcp/'  | grep 192.168.10.51 |  Awk -v fs= "[ :]+"   ' {print $6} '  | sort | uniq -c |  sort -n > /root/account_tcp/51_tcp.txt# TCP connectivity for the foreign address with the statistics IP 80 netstat -na  | awk  '/^tcp/'  | grep 192.168.10.80 | awk -v fs= "[ :]+ "  ' {print $6} '  |&Nbsp;sort | uniq -c | sort -n > /root/account_tcp/80_tcp.txt# TCP connectivity for foreign address with IP 86 netstat -na | awk  '/^tcp/'  | grep  192.168.10.86 | awk -v fs= "[ :]+"   ' {print $6} '  | sort |  uniq -c | sort -n > /root/account_tcp/86_tcp.txt# Statistics IP is 87 foreign  Address TCP connection Condition netstat -na | awk  '/^tcp/'  | grep 192.168.10.87 |  Awk -v fs= "[ :]+"   ' {print $6} '  | sort | uniq -c |  Sort -n > /root/account_tcp/87_tcp.txt

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Shell Statistics current network connection status