#!/bin/bash

inhalt=`cat ~/tracker`
trackername=$1
trackerurl=""

for zeile in $inhalt
do
     current=`cut -d ' ' -f 1 $zeile`
     if [ $trackername = $current ]
     then
          trackerurl=`cut -d ' ' -f 2 $zeile`
          break
     fi
done

if [ ! "$trackerurl" ]
then
     echo "Tracker $trackername nicht gefunden"
else
     echo $trackerurl
fi