Tech Quick Tips

Essential technical knowledge made simple!

Learn fundamental technical concepts with these bite-sized lessons!

HTTP Status Codes

Common Codes:

  • 200 - OK (Success)
  • 404 - Not Found
  • 500 - Server Error
  • 301 - Permanent Redirect
  • 403 - Forbidden

Git Basic Commands

Essential Commands:

  • git init - Create new repository
  • git add - Stage changes
  • git commit - Save changes
  • git push - Upload to remote
  • git pull - Download changes

Linux File Permissions

Permission Types:

  • r (4) - Read permission
  • w (2) - Write permission
  • x (1) - Execute permission
  • chmod 755 - Common setting
  • chmod 644 - File default

SQL Basics

Key Commands:

  • SELECT - Retrieve data
  • INSERT - Add new records
  • UPDATE - Modify records
  • DELETE - Remove records
  • JOIN - Combine tables
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