Add files.

install.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/bash
+
+DOWNLOAD_URL=https://releases.mozilla.org/pub/calendar/sunbird/releases/0.9/contrib/linux-x86_64/sunbird-0.9.en-US.linux-x86_64.tar.gz
+DOWNLOAD_PATH=sunbird-0.9.en-US.linux-x86_64.tar.gz
+CHECKSUM=caa0b0774a02205ea71154050de074a4ea058c968d4802ecc821e3817a2d2722
+INSTALL_DIR=/opt/sunbird
+
+wget $DOWNLOAD_URL -O $DOWNLOAD_PATH
+if [ "$(sha256sum $DOWNLOAD_PATH | awk '{print $1}')" != "$CHECKSUM" ]; then
+	echo "Checksum verification failed. Exiting."
+	exit 1
+fi
+
+tar -xvf $DOWNLOAD_PATH
+
+if [ -d "$INSTALL_DIR" ]; then
+	printf "Directory $INSTALL_DIR already exists. Remove and replace it? (yes/no) "
+	read response
+	if [ "$response" = "yes" ]; then
+		sudo rm -r $INSTALL_DIR
+		echo "Existing installation removed. Proceeding with new installation."
+	else
+		echo "Installation aborted."
+		rm $DOWNLOAD_PATH
+		rm -r sunbird
+		exit 1
+	fi
+fi
+
+sudo rsync -avh --progress ./sunbird/ $INSTALL_DIR/ --remove-source-files
+rm -r sunbird
+rm $DOWNLOAD_PATH
+
+sudo rsync -avh --progress ./usr/ /usr/