How do you get along with Linux at the command line level? Have you faced issues like port being busy?

When working with Linux at the command line level, I often use standard utilities for diagnosing and managing processes. For example, if a port is occupied, I first determine which process is using it with the command:

sudo lsof -i :<port>

or

netstat -tulpn | grep <port>

After that, I can terminate the process using kill or kill -9 by PID, if it is safe to do so. I also use ss for more modern network connection diagnostics.

For regular tasks, I use bash scripts to automate port checking and freeing, as well as system monitoring. This helps quickly respond to issues and maintain environment stability.