[FatCat]

Here are some Linux commands I find useful when learning
cybersecurity:

ip addr — View network interfaces and IP addresses
ip route — View the routing table
ss -tulpn — View listening ports
ps aux — List running processes
journalctl — View system/service logs
dig — Perform DNS queries

What Linux commands do you use most often?

[Raijin]

Back when I was learning there was no "ip" command. It used to be "ifconfig".