Skill: ppopen/openclaw-skill-cron-scheduler (version 1.0.0)

--- name: cron-scheduler description: Manage cron jobs on macOS/Linux - list, add, remove, backup, and schedule recurring tasks triggers: - "cron" - "cron job" - "schedule task" - "recurring task" - "crontab" commands: list: usage: cron-scheduler list description: List all cron jobs for current user add: usage: cron-scheduler add "<schedule>" "<command>" description: Add a new cron job with schedule validation remove: usage: cron-scheduler remove <line_number> description: Remove a cron job by line number remove-pattern: usage: cron-scheduler removep <pattern> description: Remove cron jobs matching a pattern edit: usage: cron-scheduler edit description: Open crontab in default editor next: usage: cron-scheduler next description: Show next run times for all jobs backup: usage: cron-scheduler backup description: Backup current crontab to ~/.cron-backups/ restore: usage: cron-scheduler restore [backup_file] description: Restore crontab from backup (lists available if no file) service: usage: cron-scheduler service <start|stop|status> description: Enable/disable or check cron service status templates: usage: cron-scheduler templates description: Show common cron job schedule templates --- # Cron Scheduler Skill A comprehensive skill for managing cron jobs on both macOS and Linux systems. ## Features 1. **List Jobs** - View all cron jobs for the current user 2. **Add Job** - Create new cron jobs with schedule validation 3. **Remove Job** - Delete jobs by line number or pattern 4. **Edit Crontab** - Open crontab in your default editor 5. **Next Runs** - See when each job will execute next 6. **Backup/Restore** - Safely backup and restore crontab configurations 7. **Service Control** - Start/stop/status of cron daemon 8. **Templates** - Common schedule patterns for quick setup ## Requirements - `crontab` command (pre-installed on macOS/Linux) - `bash` shell - Optional: `cronnext` for accurate next-run predictions (Linux) ## Installation ```bash # Make the script executable chmod +x ~/.openclaw/workspace/skills/cron-scheduler/scripts/cron-helper.sh # Optional: Add to PATH echo 'export PATH="$HOME/.openclaw/workspace/skills/cron-scheduler/scripts:$PATH"' >> ~/.zshrc source ~/.zshrc ``` ## Usage ### List all cron jobs ```bash cron-scheduler list # or cron-scheduler l ``` ### Add a new cron job ```bash # Daily backup at 2am cron-scheduler add "0 2 * * *" "~/scripts/backup.sh" # Every hour cron-scheduler add "0 * * * *" "~/scripts/hourly-task.sh" # Every 5 minutes cron-scheduler add "*/5 * * * *" "~/scripts/monitor.sh" ``` ### Remove cron jobs ```bash # By line number (use 'list' first to see line numbers) cron-scheduler remove 3 # By pattern (matches anywhere in the line) cron-scheduler removep "backup" ``` ### Edit crontab directly ```bash cron-scheduler edit # or cron-scheduler e ``` ### Show next run times ```bash cron-scheduler next # or cron-scheduler n ``` ### Backup and restore ```bash # Create backup cron-scheduler backup # List available backups cron-scheduler restore # Restore specific backup cron-scheduler restore ~/.cron-backups/crontab_20240315_143022.bak ``` ### Manage cron service ```bash # Check status cron-scheduler service status # Start cron (may require sudo) cron-scheduler service start # Stop cron (may require sudo) cron-scheduler service stop ``` ### View templates ```bash cron-scheduler templates # or cron-scheduler t ``` ## Cron Schedule Format ``` ┌──────────── minute (0 - 59) │ ┌────────── hour (0 - 23) │ │ ┌──────── day of month (1 - 31) │ │ │ ┌------ month (1 - 12) │ │ │ │ ┌---- day of week (0 - 6, Sunday=0) * * * * * ``` ### Common Examples | Schedule | Description | |----------|-------------| | `0 0 * * *` | Daily at midnight | | `0 2 * * *` | Daily at 2am | | `0 * * * *` | Every hour | | `*/5 * * * *` | Every 5 minutes | | `0 9 * * 1-5` | Weekdays at 9am | | `0 0 * * 0` | Weekly on Sunday | | `0 0 1 * *` | Monthly on 1st | ## Platform Support - **macOS**: Uses `launchctl` for service management - **Linux**: Uses `systemctl` for service management ## Safety Features - Temporary files used for atomic crontab modifications - Backup created before any destructive operations - Confirmation prompt before restore - Schedule validation before adding jobs


Security scan verdicts — ClawScan: suspicious | static analysis: clean | VirusTotal: clean | SkillSpector: suspicious (CRITICAL)