#!/bin/bash

USER=$1
PROCS="rtorrent deluged utorrent.exe"
NMAX=1
PROCLIST=`ps -u $USER`

COUNT=0
for proc in $PROCS; do
    NGREP=`echo "$PROCLIST" | grep -c $proc`
    COUNT=`expr $COUNT + $NGREP`
done

if [ $COUNT -gt $NMAX ]; then
    for proc in $PROCS; do
        echo "$PROCLIST" | grep $proc | cut -c 1-5 | xargs kill
    done
fi