Quick Tip

Taming Terminal Noise: Unified Logging with `2>&1`

Challenge: When running commands or scripts that produce both standard output (stdout) and error output (stderr), it can be cumbersome to manage these separate streams, especially when you want to redirect both to a single log file.

The Solution: Redirect both stdout and stderr to a single destination using the `2>&1` construct.

your_command > output.log 2&>1

Why it works: The `>` redirects stdout (file descriptor 1) to `output.log`. The `2>&1` then redirects stderr (file descriptor 2) to wherever stdout is currently going, effectively combining both into one file.

Pro-Tip: For complex scripts, consider using `exec > >(tee -a output.log) 2>&1` to not only log but also see the output in your terminal in real-time.

Linux Tips & Tricks | © ngelinux.com | 5/28/2026