Portcheck.

#!/bin/csh

set PORT = $1
if ($PORT == "") then
echo -n "port> "
set PORT = $<
endif

set IP=`/usr/sbin/ifconfig -a | grep inet | grep -v 127.0.0.1 | awk '{print $2}'`

foreach STATE ( ESTABLISHED LAST_ACK CLOSING TIME_WAIT CLOSE_WAIT LISTEN IDLE )
set CNT=`netstat -an | grep $IP.$PORT | grep $STATE | wc -l`
echo $STATE ":" $CNT
end

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