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. By default, these go to separate streams, making correlation difficult.

The Solution: Redirect STDERR to STDOUT using the `2>&1` syntax.

your_command > output.log 2>&1

Why it works: The `>` operator redirects STDOUT (file descriptor 1). The `2>&1` then tells the shell to send file descriptor 2 (STDERR) to the same place as file descriptor 1 (STDOUT), effectively merging them.

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

Linux Tips & Tricks | © ngelinux.com | 5/21/2026