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Developer Builds Server Health Monitor with Bash and Slack Webhook Alerts

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A developer has shared a tutorial on building a Bash script that monitors four key server metrics — disk usage, memory, CPU load, and service status — and sends automated alerts to Slack when any metric exceeds a defined threshold. The script uses a Slack Incoming Webhook, which is configured through the Slack API dashboard and stored securely in a local .env file to avoid accidental exposure. The tutorial is primarily written for macOS, with notes flagging platform-specific commands that differ on Linux, such as using free -m instead of vm_stat. The script is built incrementally in stages using the Vim editor, allowing developers to isolate and debug issues as each new check is added. The full code is available in a public repository for those who prefer to follow along in a different editor.

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