Script gesucht für Rechte setzen?

#!/bin/sh


user_add()
{
    if [ "$VDRUSR" = "vdr" ] ; then
	if ! grep -qs ^vdrdaem:x:99: /etc/group ; then
	    groupadd -g 99 vdrdaem
	    sleep 1s
	fi


	if grep -qs "Video Disk Recorder" /etc/passwd ; then
	    cp /etc/passwd $BCKDIR/passwd-`$TIME`.old
	    grep -vi "Video Disk Recorder" /etc/passwd >$tmp/tmp1.$$
	    cat $tmp/tmp1.$$ >/etc/passwd
	fi


	if ! grep -qs ^vdr:x:99:99 /etc/passwd ; then
	    useradd -u 99 -g vdrdaem -d $DISDIR -p vdrdaem -c 'VDR User' vdr
	    sleep 1s
	fi


	if which sudo >/dev/null 2>&1 ; then
	    cp /etc/sudoers $BCKDIR/sudoers-`$TIME`.old
	    grep -vi vdr /etc/sudoers >$tmp/tmp1.$$
	    cat $tmp/tmp1.$$ >/etc/sudoers
	    echo "vdr	ALL=(ALL) NOPASSWD: /sbin/halt" >>/etc/sudoers
	    if which nvram-wakeup >/dev/null 2>&1 ; then
		sed -i "s/\/sbin\/halt/\/usr\/local\/bin\/nvram-wakeup, \/sbin\/shutdown, \/sbin\/lilo/" /etc/sudoers
	    fi
	fi


	chmod -f a+rw /dev/lircd /dev/dvd /dev/tty8 /dev/cdrom /dev/video?
	chown -fR vdr:vdrdaem /vtx /mp3 $VIDEODIR /var/lib/cddb /cdfs /opt/vdradmind /misc $VDRCONVERT /film
	chown -fR vdr:vdrdaem $DISDIR $VDR2DIVX $MYPATH/VDR $MYPATH/DVB $MYPATH/vdr2divx $VDRRIP
	chown -f vdr:vdrdaem /dev/dvb/adapter?/* dev/video? /dev/input/event?


	if [ -e $PLGSRC/console ] ; then
	    usermod -G tty vdr
        fi


	if [ -d /etc/init.d ] ; then
	    cd /etc/init.d
	elif [ -d /etc/rc.d/init.d ] ; then
	    cd /etc/rc.d/init.d
	fi


	if [ -e vdrconvert ] ; then
	    sed -i "s/^#CONV_USER=vdr/CONV_USER=vdr/" vdrconvert
	    sed -i "s/^CONV_USER=root/#CONV_USER=root/" vdrconvert
	fi


	if [ -e vdradmind ] ; then
	    sed -i "s/^#ADM_USER=vdr/ADM_USER=vdr/" vdradmind
	    sed -i "s/^ADM_USER=root/#ADM_USER=root/" vdradmind
	fi
    else
	if grep -qs ^vdr:x:99:99 /etc/passwd ; then
	    userdel vdr
	fi


	if grep -qs ^vdrdaem:x:99 /etc/group ; then
	    groupdel vdrdaem
	fi


	if grep -qs sudo $SCRDIR/vdrshutdown.sh ; then
	    sed -i "s/sudo //" $SCRDIR/vdrshutdown.sh
	fi


	if grep -qs vdr /etc/sudoers ; then
	    cp /etc/sudoers $BCKDIR/sudoers-`$TIME`.old
	    grep -vi vdr /etc/sudoers >$tmp/tmp1.$$
	    cat $tmp/tmp1.$$ >/etc/sudoers
	fi


	if [ -d /etc/init.d ] ; then
	    cd /etc/init.d
	elif [ -d /etc/rc.d/init.d ] ; then
	    cd /etc/rc.d/init.d
	fi


	if [ -e vdrconvert ] ; then
	    sed -i "s/^CONV_USER=vdr/#CONV_USER=vdr/" vdrconvert
	    sed -i "s/^#CONV_USER=root/CONV_USER=root/" vdrconvert
	fi


	if [ -e /etc/init.d/vdradmind ] ; then
	    sed -i "s/^ADM_USER=vdr/#ADM_USER=vdr/" vdradmind
	    sed -i "s/^#ADM_USER=root/ADM_USER=root/" vdradmind
	fi
    fi
}