cron30 * * * *

IDS Signature Update — Every Hour :30

“At minute 30 of every hour”

Hourly intrusion detection system (IDS) signature update at the :30 mark. Pulls latest Snort/Suricata rules, validates syntax, and hot-reloads without service interruption.

Hourly24 runs/day

Want to customize this schedule or validate your own cron expression?

Try it live →

Field Breakdown

Field	Value	Meaning
minute	`30`	30
hour	`*`	every hour
day	`*`	every day of month
month	`*`	every month
weekday	`*`	every day of week

minute

hour

day

month

weekday

Common Use Cases

✓Snort IDS rule update hourly
✓Suricata signature refresh
✓IDS rule hot-reload cron
✓Network threat signature update

Code Examples

Bash / crontab

# Run your script on schedule: 30 * * * *
30 * * * * /path/to/your/script.sh

Node.js (node-cron)

import cron from 'node-cron';

cron.schedule('30 * * * *', () => {
  console.log('Running scheduled task');
});

Python (APScheduler)

from apscheduler.schedulers.blocking import BlockingScheduler

scheduler = BlockingScheduler()

@scheduler.scheduled_job('cron', minute='30')
def my_job():
    print('Running scheduled task')

scheduler.start()

GitHub Actions Workflow

Generate a ready-to-use .github/workflows/schedule.yml file. Customize the name and download directly.

GitHub Actions

Workflow Name

Job ID

# .github/workflows/schedule.yml
name: IDS Signature Update — Every Hour :30

on:
  schedule:
    - cron: '30 * * * *'
  workflow_dispatch: # allow manual trigger

jobs:
  run:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Run scheduled task
        run: |
          echo "Running on schedule: 30 * * * *"
          # Add your commands here

Save as .github/workflows/schedule.yml in your repository root

Cron Syntax Quick Reference

Field	Allowed Values	Special Chars
minute	0–59	* , - /
hour	0–23	* , - /
day of month	1–31	* , - /
month	1–12 or JAN–DEC	* , - /
day of week	0–7 or SUN–SAT	* , - /

Special characters: *= any value ,= list -= range / = step

Related Patterns — Hourly

Need to build your own cron expression from scratch?

Open the Cron Expression Builder →