Quick Tip

Tame Your Logs: Unified `stderr` and `stdout` with `2>&1`

Challenge: When running commands that produce both standard output (stdout) and error messages (stderr), it’s often difficult to capture and analyze them together, especially in scripts or when redirecting output to a file.

The Solution: Use the `2>&1` redirection to merge stderr into stdout.

your_command &> output.log

Why it works: The `&>` is a shorthand that redirects both stdout (file descriptor 1) and stderr (file descriptor 2) to the specified file. It’s equivalent to `your_command > output.log 2>&1`.

Pro-Tip: For older shells or for explicit control, `command > file.txt 2>&1` achieves the same result by first redirecting stdout to `file.txt` and then redirecting stderr (file descriptor 2) to wherever stdout is currently pointing (which is `file.txt`).

Linux Tips & Tricks | © ngelinux.com | 6/8/2026