Open-source tool cronlock prevents overlapping cron jobs with locking and alerts

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cronlock is a new open-source Bash script designed to solve the problem of overlapping cron jobs. It uses file-based advisory locking to ensure only one instance of a scheduled task runs at a time. The tool adds a mandatory timeout to prevent hung jobs from blocking the scheduler. It also logs execution details and can send failure alerts via webhooks to services like Slack or PagerDuty.

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