Copy-ready commandlsof — Basic Usage
sudo lsof -i :443Requirements and permissions
- Requirements
- Linux with the referenced utility installed
- Permissions
- Use sudo or root only when required
- Last reviewed
- 2026-07-31
Examples
Basic Usage
Use lsof for a standard administrative task.
sudo lsof -i :443Original command
List processes using a network port.
sudo lsof -i :443Common errors
Command not found
Confirm Linux with the referenced utility installed is installed and available in your current shell.