Hilfe bei Bashscript

#!/bin/sh
#
# Als Anreiz dienten Scripts von
# Michael Geiger - tux1337 - www.geigers-site.de
# Christoph Schuster | ndurchx | www.n-durch-x.de
#
##
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 3 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, see <http://www.gnu.org/licenses/>.
#
 
#check for running process
while [ -e /tmp/nvcp/vcp.pid ]; do
	if ( kill -0 `cat /tmp/nvcp/vcp.pid` 2> /dev/null ); then
    	sleep 5
	else
    	rm -R /tmp/nvcp
	fi
done
#CONFIG
user="" #your vcp login name
password="" #your vcp password
servername="" #your vserver name (vXXXXXXXXXXXX)
maxbackups=""




mkdir /tmp/nvcp
chmod 600 /tmp/nvcp
cd /tmp/nvcp
echo $$ > vcp.pid
#Login
curl -b cookie.txt -c cookie.txt -d "doLogin=Login&username=$user&password=$password" --url https://www.vservercontrolpanel.de/Login




curl -b cookie.txt -o tmp.txt --url https://www.vservercontrolpanel.de/Home
tr -d \\012 < tmp.txt > servers.txt




serverid=`grep -o "selectedVServerId=[0-9]\{1,10\}[^0-9]*$servername" servers.txt | grep -m 1 -o "Id=[0-9]*" | grep -o [0-9]*`
curl -b cookie.txt -o backups.txt --url "https://www.vservercontrolpanel.de/VServers?selectedVServerId=$serverid&page=backup"
grep -o -R $servername"_[0-9]\{4\}.[0-9]\{2\}.[0-9]\{2\}_[0-9]\{2\}:[0-9]\{2\}" backups.txt |uniq |sort > backupsavailable.txt




lines=`wc -l backupsavailable.txt | cut -f1 -d' '`
if [ "$lines" == "$maxbackups" ]
then
btime=`grep -o -R $servername"_[0-9]\{4\}.[0-9]\{2\}.[0-9]\{2\}_[0-9]\{2\}:[0-9]\{2\}" backups.txt |uniq |sort |head -n1`
curl -b cookie.txt -d "renewBackup=yes&backupToRenew=$btime" --url "https://www.vservercontrolpanel.de/VServers?selectedVServerId=$serverid&page=backup"
else
curl -b cookie.txt -d "createNewBackup=yes&newBackup=neues%20Backup%20anlegen" --url "https://www.vservercontrolpanel.de/VServers?selectedVServerId=$serverid&page=backup"
#NEUES BACKUP ANLEGEN
fi




#Logout
curl -b cookie.txt --url https://www.vservercontrolpanel.de/Logout




rm -R /tmp/nvcp




exit 0