script to know active tcp connections

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Simple shell script to know how much active tcp connections are using your server's service ( usefull in case to know about web or ftp server or other network servers concurrent connections )

netstat -an | grep ESTABLISHED | awk '{print $5}' | awk -F: '{print $1}' | sort | uniq -c | awk '{ printf("%s\t%s\t",$2,$1) ; print "" }'

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