assignment2_init_script.sh

#!/bin/bash
       
#Title           :assignment2_init_script.sh
#description     :This script will download and install the template for assignment2.
#Author		     :Swetank Kumar Saha <swetankk@buffalo.edu>
#Version         :1.1
#====================================================================================

# https://gist.github.com/davejamesmiller/1965569
function ask {
    while true; do
 
        if [ "${2:-}" = "Y" ]; then
            prompt="Y/n"
            default=Y
        elif [ "${2:-}" = "N" ]; then
            prompt="y/N"
            default=N
        else
            prompt="y/n"
            default=
        fi
 
        # Ask the question
        read -p "$1 [$prompt] " REPLY
 
        # Default?
        if [ -z "$REPLY" ]; then
            REPLY=$default
        fi
 
        # Check if the reply is valid
        case "$REPLY" in
            Y*|y*) return 0 ;;
            N*|n*) return 1 ;;
        esac
 
    done
}

echo -n "Enter your UBIT username (without the @buffalo.edu part) and press [ENTER]: "
read ubitname

while true; do
	echo -n "Enter 1 (for C) OR 2 (for C++): "
	read -n 1 lang_choice
	
	if [ -z $lang_choice ]; then
		continue
	elif [ $lang_choice == "1" ]; then
        	language="C"
            lang_option="c"
		break
	elif [ $lang_choice == "2" ]; then
        	language="C++"
            lang_option="cpp"
		break
	else
		continue
	fi
done

echo
echo
echo "UBIT username: $ubitname"
echo "Programming language: $language"

if ask "Do you want to continue?" Y; then
	wget https://ubwins.cse.buffalo.edu/cse-489_589/assignment2_package.sh
	chmod +x assignment2_package.sh

	wget https://ubwins.cse.buffalo.edu/cse-489_589/assignment2_update_scripts.sh
    chmod +x assignment2_update_scripts.sh

	wget https://ubwins.cse.buffalo.edu/cse-489_589/assignment2_template_${lang_option}.tar
	tar -xvf assignment2_template_${lang_option}.tar
	
	mv ./ubitname $ubitname
	
	rm assignment2_template_${lang_option}.tar

	mkdir scripts
    cd scripts
    wget -r --no-parent -nH --cut-dirs=3 -R index.html https://ubwins.cse.buffalo.edu/cse-489_589/scripts/
    chmod +x run_experiments
    chmod +x sanity_tests
    cd ..

	echo
	echo "Installation ... Success!"
else
	exit 0
fi