Quick Tip

Tame Your Terminal: Redirect `stderr` to `stdout` for Unified Logging

Challenge: When running commands or scripts, error messages (from stderr) often get mixed with or lost among standard output (stdout). This makes it difficult to capture all relevant information, especially for logging purposes.

The Solution: Use the `2>&1` redirection to send stderr to stdout. This allows you to capture both standard output and error messages in a single stream.

your_command > output.log 2>&1

Why it works: File descriptor 1 is standard output (stdout), and file descriptor 2 is standard error (stderr). The `2>&1` syntax tells the shell to redirect file descriptor 2 to the same place as file descriptor 1.

Pro-Tip: To redirect only stderr to a file and keep stdout on the terminal, use `your_command 2> error.log`.

Linux Tips & Tricks | © ngelinux.com | 5/26/2026