Generate very basic CI project from the command line

Code:
#!/bin/bash

# This is where the CodeIgniter main folder is

ci_dir="/Users/aziz/Documents/Scripts/php/CodeIgniter_1.7.1"



# The current date used for the default project name if no project name is submited

date=`date +"%Y-%m-%d_%H-%M-%S"`



# Create the main project folder

if [ -z $1 ]

then

    read -p "Choose a name for your project: [Default: ci-$date]" project_name

    if [ -z $project_name ]

    then

        \cp -R $ci_dir ./ci-$date

        project_name=ci-$date

    else

        \cp -R $ci_dir ./$project_name

        project_name=$project_name

    fi

else

    let "folder_exists= 1"

    while [ $folder_exists -eq 1 ]

    do

        if [ -d $1 ]

        then

            echo 'This directory already exists'

            read -p "Choose a name for your project: [Default: ci-$date]" project_name

            if [ -z $project_name ]

            then

                let "folder_exists= 0"

                \cp -R $ci_dir ./ci-$date

                project_name=ci-$date

            else

                if [ -d $project_name ]

                then

                    let "folder_exists= 1"

                else

                    let "folder_exists= 0"

                    \cp -R $ci_dir ./$project_name

                    project_name=$project_name

                fi

            fi

        else

            let "folder_exists= 0"

            \cp -R $ci_dir $1

            project_name=$1

        fi

    done

fi



# Ask the user if he wants to move the application folder outside the system folder

dir=`pwd`

echo "Project folder created in $dir/"

read -p "Do you want to move the application? [Default: y]"$'\n'"[y/n] " -n 1 choice

if [ -z $choice ] || [ $choice = 'y' ]

then

    cd "$project_name"

    mv system/application application

    cd -

    echo 'application folder moved outside the system folder'

fi

echo -e "\nProject generated successfully in $dir/$project_name"