System Update Script / Send to Slack

auto-update-server.sh

#!/bin/bash

# Replace 'YOUR_SLACK_TOKEN' with your Slack Bot Token
SLACK_TOKEN="ABC123"
# Replace 'YOUR_CHANNEL_ID' with the ID of the Slack channel where you want to send the message
CHANNEL_ID="C123456789ZYX"

LOG_FILE="/var/log/update_script.log"

# Get the start date
START_DATE=$(date)

# Function to log messages to console and log file
log_message() {
    local message="$1"
    echo "$message"
    echo "$message" >> "$LOG_FILE"
}

# Initialize OUTPUT with the start date
OUTPUT="Running System Update Script at $START_DATE"
log_message "$OUTPUT"

if APT_UPDATE_OUTPUT=$(apt-get update 2>&1); then
    OUTPUT="$OUTPUT\nUpdate successful\n$APT_UPDATE_OUTPUT"
    log_message "$OUTPUT"
else
    OUTPUT="$OUTPUT\nUpdate failed\n$APT_UPDATE_OUTPUT"
    log_message "$OUTPUT"
    exit 1
fi

if APT_UPGRADE_OUTPUT=$(apt-get upgrade -y 2>&1); then
    OUTPUT="$OUTPUT\nUpgrade successful\n$APT_UPGRADE_OUTPUT"
    log_message "$OUTPUT"
else
    OUTPUT="$OUTPUT\nUpgrade failed\n$APT_UPGRADE_OUTPUT"
    log_message "$OUTPUT"
    exit 1
fi

if APT_AUTOCLEAN_OUTPUT=$(apt-get autoclean 2>&1); then
    OUTPUT="$OUTPUT\nAutoclean successful\n$APT_AUTOCLEAN_OUTPUT"
    log_message "$OUTPUT"
else
    OUTPUT="$OUTPUT\nAutoclean failed\n$APT_AUTOCLEAN_OUTPUT"
    log_message "$OUTPUT"
    exit 1
fi

# Get the end date
END_DATE=$(date)

# Append OUTPUT with the end date
OUTPUT="$OUTPUT\nSystem Update Script completed at $END_DATE"

# Send the output to Slack
curl -X POST -H "Content-type: application/json" \
  -H "Authorization: Bearer $SLACK_TOKEN" \
  -d "{\"channel\":\"$CHANNEL_ID\",\"text\":\"$OUTPUT\"}" \
  https://slack.com/api/chat.postMessage