Quick Tip

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

Challenge: When running commands or scripts, you often encounter both standard output (stdout) and standard error (stderr) messages. These can intermingle, making it difficult to analyze logs or redirect output cleanly.

The Solution: Redirecting stderr to stdout using `2>&1` allows you to capture both streams into a single destination.

command &> output.log

Why it works: The `&>` is a shorthand for `&>>` (append) or `>` (overwrite) combined with `2>&1`. File descriptor 1 is stdout, and file descriptor 2 is stderr. `2>&1` tells the shell to send the contents of file descriptor 2 to the same location as file descriptor 1.

Pro-Tip: For interactive commands, you can use `script` to record your entire terminal session, including both stdout and stderr, for later review.

Linux Tips & Tricks | © ngelinux.com | 6/20/2026