lsof — Measure execution timeIT technician command center
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Linux · Linux and Bash

lsof — Measure execution time

Measure the command execution time. Base task: List processes using a network port.

Copy-ready commandlsof — Measure execution time
time sudo lsof -i :443

Requirements and permissions

Requirements
Linux with the referenced utility installed
Permissions
Use sudo or root only when required
Last reviewed
2026-08-01

Examples

Measure execution time

Measure the command execution time.

time sudo lsof -i :443

Common errors

Command or option not supported

Confirm the installed platform version supports the base command and the added output or wrapper option.

Access denied or insufficient privileges

Run with the administrative role or delegated permission required by the underlying command.