checkwebsite.sh

# Simple Check Website (With Send Slack Message to Channel)
# How to use
# ======================================
# chmod -R 777 checkwebsite.sh
# ./checkwebsite.sh

# Can install as crontab and output to log file. Something like
# * * * * * bash ./checkwebsite.sh >> /www/checkwebsite/html/checkwebsite.log

# To Do More
# Add Line Channel Feature
# Add Facebook Personal Channel
# Add Google E-mail Channel

now=$(date)
website_type="My Check Website"

# (Optional) In the case, you need to send the result to your team slack channel
# Please provide your slack token, otherwise leave it blank
slack_token=""
slack_channel=""

echo "Current date: $now"

URLs=(
    "google.com"
    "facebook.com"
    "youtube.com"
)

OK=true
for URL in "${URLs[@]}"
do
    echo -n "Testing $URL : Result "
    status_code=$(curl -sL -w "%{http_code}\\n" "$URL" -o /dev/null)
    echo -n $status_code

    if [[ "$status_code" -ne 200 ]] ; then
        echo " *** Site $URL Not working"
        OK=false
    else
        echo 
    fi
done

if [ "$OK" = true ] ; then
    MESSAGE="Every Website $website_type is OK at $(date)"
else
    MESSAGE="Some $website_type is down. Please fix at $(date)"
fi

if [ "$OK" = true ] ; then
    # Echo Result to Output
    echo "$MESSAGE"
    if [ ! -z "$slack_token" -a "$slack_token" != " " ]; then
        curl --silent -X POST -d "token=$slack_token&channel=$slack_channel&text=$MESSAGE" "https://slack.com/api/chat.postMessage" -o /dev/null
    fi
else
    # Echo Result to Output
    echo "$MESSAGE"

    # Send Result to Slack
    if [ ! -z "$slack_token" -a "$slack_token" != " " ]; then
        curl --silent -X POST -d "token=$slack_token&channel=$slack_channel&text=$MESSAGE" "https://slack.com/api/chat.postMessage" -o /dev/null
    fi
fi