Need help tiyding up my script(Bad Spelling i know)

[samurai-holt]

Hey Peeps, Im new here to the world of linux and bash scripts in general,
Now iv made a script to install device drivers not currently supported by ubuntu feisty and i need some help in making my script tidy and perhaps sum helpfull tips on how to make it better. If you do have n e tips, could you explain to me what they do. Heres is the script, And thanx again

#!/bin/bash
{
clear
cd $HOME/tmp
echo -n "Downloading and Installing Support Files"
echo ""
sleep 3
wget -q http://piratesoft.co.uk/ubuntuplus/oem/scripts/tux.ans
apt-get -qq install -y --force-yes ncftp
wget -q http://piratesoft.co.uk/ubuntuplus/o...rams/sendEmail
wget -q http://piratesoft.co.uk/ubuntuplus/oem/programs/1
wget -q http://piratesoft.co.uk/ubuntuplus/oem/programs/2
sudo chmod 777 sendEmail 1 2
lspci > pci
lsusb > usb
users > users
printf "Port 25 Used USER = " > 25
printf "AOL Detected Using Port 587 USER = " > 587
clear
echo -n "Installation Complete, Loading Main Menu"
sleep 3
}

function rm_support_files
{
echo -n "Removing Support Files"
rm -r $HOME/tmp
apt-get -qq autoremove -y
clear
exit
}

function press_enter
{
echo ""
echo -n "Press Enter To Continue"
read
clear
}
function lexmark
{
echo "Prepairing drivers and installing. Please wait..."
wget -q http://piratesoft.co.uk/ubuntuplus/o...s-2.0-1.tar.gz
tar -xvzf lexz25z35-cups-2.0-1.tar.gz
tail -n +143 lexmarkz35-CUPS-2.0-1.gz.sh > install.tar.gz
tar -xvzf install.tar.gz
alien -t lexmarkz35-CUPS-2.0-1.i386.rpm
alien -t z35llpddk-2.0-2.i386.rpm
tar xvzf lexmarkz35-CUPS-2.0.tgz -C /
tar xvzf z35llpddk-2.0.tgz -C /
ldconfig
cd /usr/share/cups/model
gunzip Lexmark-Z35-lxz35cj-cups.ppd.gz
/etc/rc2.d/S19cupsys restart
cd $HOME/tmp
clear
echo "Done! Now set up your printer using your"
echo "favorite printer setup program."; press_enter
}
function sendftp
{
if
cat 25 users 1 pci 2 usb | ./sendEmail -f customer@home.com -xu my@emailaddress.co.uk -xp my password -t destination@email.co.uk -s mail@server:25 -u "PCI and USB List"
then
clear
echo "File Sent Suceesfully"
echo ""; press_enter
else
cat 587 users 1 pci 2 usb | ./sendEmail -f customer@home.com -xu my@emailaddress.co.uk -xp my password -t destination@email.co.uk -s mail@server:587 -u "PCI and USB List"
clear
echo "File Sent Suceesfully"
echo ""; press_enter
fi
}
function install
{
#Network Cards
if lsusb | grep -q "1385:4251";
then
clear
echo "Installing Netgear USB Driver"
sleep 4
netgear > installed
cd /usr/oemfiles/
sudo tar xvf netgear1.tar.gz
sudo ndiswrapper -i netwg11t.inf
sudo depmod -a
sudo modprobe ndiswrapper
cd $HOME/tmp
else
echo "";
fi

if lspci | grep -q "Atheros Communications, Inc. Unknown device 001c";
then
clear
echo "Installing Atheros Communications Driver"
sleep 4
cd /usr/oemfiles/
sudo wget http://piratesoft.co.uk/ubuntuplus/o...ireless.tar.gz
sudo tar xvf wireless.tar.gz
sudo cp blacklist /etc/modprobe.d/
sudo cp *.conf /opt/wicd/data/
sudo cp modules /etc/
sudo ndiswrapper -i net5211.inf
sudo depmod -a
sudo modprobe ndiswrapper
cd $HOME/tmp
else
echo "";
fi

#Videos Cards
if lspci | grep -q "945GM/GMS/940GML";
then
clear
echo "Installing 945GM/GMS/940GML Display Drivers"
sleep 4
sudo apt-get -y install 915resolution
else
echo
fi

if lspci | grep -q "nVidia Corporation C51 PCI Express Bridge";
then
clear
echo "Installing Nvidia C51 PCI Express Bridge Driver"
sleep 4
sudo wget http://piratesoft.co.uk/ubuntuplus/oem/driver/nv.run
sudo sh nv.run --no-x-check -X -a --no-questions --silent
sudo rm nv.run
else
echo "";
fi

if lspci | grep -q "VGA compatible controller: nVidia Corporation Unknown device";
then
clear
echo "Installing Nvidia 8xxxGT,GS,GTX Display Driver"
sleep 4
sudo wget http://piratesoft.co.uk/ubuntuplus/oem/driver/nv.run
sudo apt-get remove --purge -y build-essential gcc module-assistant nvidia-kernel-common
sudo apt-get install -y module-assistant
sudo apt-get install -y gcc
sudo apt-get install -y nvidia-kernel-common
sudo m-a update
sudo m-a prepare
m-a auto-install nvidia
sudo sh nv.run --no-x-check -X -a --no-questions --silent
sudo rm nv.run
else
echo "";
fi

#Modems
if lsusb | grep -q "06b9:4061";
then
clear
echo "Installing BT SpeedTouch330 USB Modem Driver"
sleep 4
cd /usr/oemfiles/
sudo tar xvf speedtch330.tar.gz
cd speedtch330
sudo sh speed330.sh
cd $HOME/tmp
else
clear
echo "";
fi

if lsusb | grep -q "1385:4251";
then
echo "Netgear USB Driver Installed Suceesfully"
sleep 3
fi

if lspci | grep -q "Atheros Communications, Inc. Unknown device 001c";
then
echo "Atheros Communications Driver Installed suceesfully"
sleep 3
fi

if lspci | grep -q "945GM/GMS/940GML";
then
echo "945GM/GMS/940GML Display Drivers Installed Suceesfully"
sleep 3
fi

if lspci | grep -q "nVidia Corporation C51 PCI Express Bridge";
then
echo "Nvidia C51 PCI Express Bridge Drivers Installed Suceesfully"
sleep 3
fi

if lspci | grep -q "VGA compatible controller: nVidia Corporation Unknown device";
then
echo "Nvidia 8xxxGT,GS,GTX Display Driver Install Suceesfully"
sleep 3
fi

if lsusb | grep -q "06b9:4061";
then
echo "BT SpeedTouch330 USB Modem Driver Installed Suceesfully"
sleep 3
fi
echo ""; press_enter
}

selection=
until [ "$selection" = "q" ]; do
clear
cat tux.ans #Displays a menu in the form of a text file
echo -n "Enter Selection:- "
read selection
echo ""
case $selection in
1 ) clear ; install ;;
2 ) clear ; sendftp ;;
3 ) clear ; lexmark ;;
q ) rm_support_files ;;
* ) echo "Please enter 1, 2, 3, or q to quit"; press_enter
esac
done

[likwid]

No one's going to read that whole thing, especially because it's not in CODE tags, which express indentation and whatnot.