Android APK (re)installer

#!/system/bin/bash
# Author: Johannes Krämer
# Email: dev@blade83.de

# This Script is for Android Phones!
# You need a rootet Phone and the curl Library
# Download here: http://curl.haxx.se/download.html#Linux
# Copy the Binary Files (data/local/bin/*) to /system/bin/ on your Android Phone.

# Usage:
# Open a Terminal on your Phone and type in app_reinstall developerbase


clear

if [ $UID != '0' ]; then
    echo -e "\033[31mYou need SuperUser rights!\033[32m"
    exit 1
fi

function usage()
{
    echo -e "\033[32mapp_reinstall:
$*

Usage:
app_reinstall <subdomainname> or
sh app_reinstall <subdomainname>

" >&2
    exit 2
}

if [ $# -lt 1 ]; then
    usage "needs a <subdomainname>"
fi

param1=$(echo "$1" | sed 's/[a-z/A-Z]//g')
if [ "$param1" ]; then
    usage "wrong <subdomainname> character(s) found"
fi

echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
echo -e "|Collect installed TMedia Applications:|\n\n\033[33m"

# Change here the search Parameters! if you use the bundle ID de.yourCompanyName.appname
# then change it to  installedPackages=`pm list packages | grep yourCompanyName`
installedPackages=`pm list packages | grep timbuli`
echo "$installedPackages" | sed -e 's/package:/\n/g'

echo -e "\033[0m"
packageExists=$(echo "$installedPackages" | grep "$1")
if [ "$packageExists" ]; then
    echo -e "\nUninstalling current Version from System"
    # change here your Package Name!!!!!
    pm uninstall "de.timbulimedia.$1"
fi

# change here your Package Name <timbulimedia>
if [ -f "/mnt/sdcard/Download/de.timbulimedia.$1.apk" ]; then
        echo -e "\n\nRemoving old *.apk Files"
    # change here your Package Name !!!!!
    rm "/mnt/sdcard/Download/de.timbulimedia.$1.apk"
    echo -e "Done"
fi

echo -e "\nSearching for download... \n"
# change here your server APK url !!!!!
serverStatus=`curl -Is "http://$1.timbulimedia.de/APP/de.timbulimedia.$1.apk" | head -n 1`
if [ "$(echo "$serverStatus" | grep -E -o "[0-9]{3}+")" -eq 200 ]; then
        # change here your Package Name and APK URL <timbulimedia>!!!!!
    curl -o "/mnt/sdcard/Download/de.timbulimedia.$1.apk" "http://$1.timbulimedia.de/APP/de.timbulimedia.$1.apk"
    echo -e "\nDownload complete. \n"
    echo -e "Installing new Application... \n"
    # change here your Package Name <timbulimedia>!!!!!
    pm install "/mnt/sdcard/Download/de.timbulimedia.$1.apk" &> /dev/null
    echo -e "\nApplication was successful updated! \n"
else
    echo -e "\n\033[31mCan not find \"$1\"!\033[32m \n\n\n"
fi
echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"