Quick Tip

Tame Your Terminal: 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 streams are separate.

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

your_command > output.log 2>&1

Why it works: The `>` redirects stdout (file descriptor 1) to `output.log`. Then, `2>&1` redirects stderr (file descriptor 2) to the same location as file descriptor 1, effectively merging both streams into one file.

Pro-Tip: Use `>>` instead of `>` to append to the log file instead of overwriting it each time. For example: your_command >> output.log 2>&1

Linux Tips & Tricks | © ngelinux.com | 6/19/2026