Quick Tip

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

Challenge: When running commands or scripts, you often want to capture both standard output (stdout) and standard error (stderr) into a single log file for easier analysis. Separately looking at two different streams can be cumbersome.

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

your_command_here > 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 the same place as stdout, effectively merging both streams.

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

Linux Tips & Tricks | © ngelinux.com | 5/25/2026