Guides ยท Technology
Cron Job Basics
Schedule tasks simply
Cron jobs run commands on schedules defined by cron expressions; good practice logs output, uses absolute paths, and monitors failures.
- cron expression
- scheduling
- logging
- alerts
- absolute paths
Write Expressions
Use minute-hour-day-month-weekday fields; test with a parser.
Run Safely
Set env, absolute paths, and limit concurrency with locks.
Monitor
Log output, alert on non-zero exits, and review regularly.
Keep Exploring
Guides
API Basics
APIs let software request data or actions from other systems through defined endpoints and responses.
Comparison
RAM vs Storage
RAM handles what your device is actively working on, while storage keeps apps, files, and system data available over time.
How it works
Global Positioning System
GPS uses timing signals from satellites to calculate a receiver's position on Earth.
What it is
Blockchain
A blockchain is a distributed ledger secured by cryptography and consensus nodes.