Cron Expression
VerifiedCron Expression — backend & api tool with Linux/AWS/GitHub Actions support.
$ Add to .claude/skills/ About This Skill
# cron-expression
Cron表达式生成、解释、常用示例、验证、下次执行时间、平台转换(Linux/AWS/GitHub Actions)
核心特点
🎯 精准 — 针对具体场景定制化输出 📋 全面 — 多个命令覆盖完整工作流 🇨🇳 本土化 — 完全适配中文用户习惯
可用命令
- generate — generate
- explain — explain
- examples — examples
- validate — validate
- next — next
- convert — convert
专业建议
- ```
- ┌──────── 分钟 (0-59)
- │ ┌────── 小时 (0-23)
- │ │ ┌──── 日 (1-31)
- │ │ │ ┌── 月 (1-12)
--- *cron-expression by BytesAgain* --- 💬 Feedback & Feature Requests: https://bytesagain.com/feedback Powered by BytesAgain | bytesagain.com
- Run `cron-expression help` for all commands
Commands
Run `cron-expression help` to see all available commands.
When to Use
- as part of a larger automation pipeline
- when you need quick cron expression from the command line
Output
Returns results to stdout. Redirect to a file with `cron-expression run > output.txt`.
Configuration
Set `CRON_EXPRESSION_DIR` environment variable to change the data directory. Default: `~/.local/share/cron-expression/`
Use Cases
- Parse and validate cron expressions to verify they match intended schedules
- Generate cron expressions from natural language schedule descriptions
- Preview the next N execution times for a given cron expression
- Convert between standard 5-field and extended 6-field cron formats
- Debug why a scheduled job runs at unexpected times by analyzing its cron expression
Pros & Cons
Pros
- +Handles both parsing and generation — works bidirectionally with cron syntax
- +Preview feature shows actual upcoming execution times for verification
- +Supports standard and extended cron expression formats
Cons
- -Documentation partially in Chinese
- -Only available on claude-code and openclaw platforms
- -Does not manage actual crontab entries — only works with expression strings
FAQ
What does Cron Expression do?
What platforms support Cron Expression?
What are the use cases for Cron Expression?
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