Script to upload all files in a folder to a server

upload-files.sh

#!/bin/sh
usage() 
{
        echo -e "Usage: $0 -i <input folder path containing files to upload> -c <credentials of the server to upload to> -u <url to upload to>" \
        "\nExample Usage: ./upload-files.sh -i /src/folder -u http://server.com/path -c user:password" 1>&2; exit 1;
}
while getopts i:u:c: option
do
        case "${option}"
        in
                u) URL=${OPTARG};;
                i) SOURCE_FOLDER=${OPTARG};;
                c) CREDENTIALS=${OPTARG};;
                *) usage;;
        esac
done
for UPLOAD_FILE in $SOURCE_FOLDER/*
do
        FILENAME=`basename $UPLOAD_FILE`
        echo -e '\nInvoking curl with' -u $CREDENTIALS -F "$FILENAME=@$UPLOAD_FILE" $URL
        curl -s -o /dev/null -w "%{http_code}" -u $CREDENTIALS -F "$FILENAME=@$UPLOAD_FILE" $URL
done