#!/usr/bin/env bash # Check a List Of Emails For Open Google Calendars. if [[ $# -eq 0 ]]; then echo 'Please provide a list email addresses to check.' exit 1 fi email_list="$1" for email_address in $(cat $email_list); do status=$(curl -s -o /dev/null -w "%{http_code}" "https://calendar.google.com/calendar/htmlembed?src=$email_address" 2> /dev/null ) if [ "$status" = 200 ]; then printf "%s" "$email_address" printf "\n" else : fi done < "$email_list"