1 example for rkhunter
# Update Definitions
sudo rkhunter --update
# Update Stored Values of Commands For Future Comparison (Use after installing software that you trust.)
sudo rkhunter --propupd
# Scan System (with all prompts and alerts)
sudo rkhunter --check
# Scan System (with all prompts)
sudo rkhunter --check --rwo
# Scan System (with all alerts)
sudo rkhunter --check --sk
# Scan System (without prompts or alerts)
sudo rkhunter --check --rwo --sk