Unix cron job scheduling reference. Covers cron expression syntax, crontab management, cron directories, output handling, lock files with flock, debugging, environment gotchas, and systemd timer alternatives.
Scanned 9/7/2026
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---
name: cron-scheduler
version: 1.0.0
description: >
Unix cron job scheduling reference. Covers cron expression syntax,
crontab management, cron directories, output handling, lock files
with flock, debugging, environment gotchas, and systemd timer
alternatives.
author: BytesAgain
homepage: https://bytesagain.com
source: https://github.com/bytesagain/ai-skills
tags: [cron, scheduler, linux, unix, automation, systemd, timer]
---
# Cron Scheduler Reference
Unix/Linux job scheduling.
## Commands
| Command | Description |
|---------|-------------|
| `intro` | Cron expressions, format |
| `management` | crontab, directories, output |
| `patterns` | Locking, debugging, systemd |
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