Linux:ClearPort

From Devicenull's Code

This was written in response to Enemy Territory servers freezing up and not properly releasing the port they were listening on. The next instance would then start on a different port causing all sorts of issues. It was designed to work in a restricted environment, where "netstat -anp" would not return PID's due to permission issues. It works around this by looking for the "net_ip x.x.x.x" line in the command line of the server. It's been tested for a few months now, and works perfectly.

#!/bin/bash
 
# Brian Rak - 2008
 
if [ $# -lt 2 ]
then
	echo 'Usage: clearport.sh ip gamebin'
	echo 'ex: clearport.sh 127.0.0.1 etded.x86'
	exit 1
fi
 
PID=`ps -o pid,comm,args -u myuser -w -w | grep -i "$2" | grep -i "net_ip $1" | awk '{print $1}'`
 
if [ -n "$PID" ]
then
	for cur in $PID
	do
		echo "Hung server process found, PID=$cur..."
 
		kill -s 9 $cur
 
		if [ $? -eq 0 ]
		then
			echo 'Process killed sucessfully'
		fi
	done	
fi