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Summarize TCP socket states (using netstat)

/ Published in: Bash
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Filters for tcp and tcp6 lines, so omits udp and unix sockets.

Information is gathered from /proc; this uses netstat mainly to format it.

Gives output like:<pre> 21 tcp LISTEN
12 tcp ESTABLISHED
7 tcp6 LISTEN
1 tcp TIME_WAIT</pre>

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  1. netstat -nal |egrep '^tcp' | sed -r 's/[ ]+/ /g' | cut -d ' ' -f 1,6 | sort | uniq -c | sort -rn

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