Quick Tip

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

TITLE: Tame Terminal Noise: Unified Logging with `2>&1`

Challenge: When running commands or scripts, you often have both standard output (stdout) and standard error (stderr) streams. If you want to capture both into a single log file, you need a way to merge them.

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

your_command_here > output.log 2>&1

Why it works: The `> output.log` redirects stdout (file descriptor 1) to `output.log`. The `2>&1` then redirects stderr (file descriptor 2) to where stdout is currently pointing, effectively merging both streams into the single log file.

Pro-Tip: To append to an existing log file instead of overwriting it, use `>> output.log 2>&1`

Linux Tips & Tricks | © ngelinux.com | 6/12/2026