Quick Tip

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

Challenge: When running commands or scripts, standard output (stdout) and error messages (stderr) are often displayed separately. This can make it difficult to follow the flow of execution or to capture all output in a single log file.

The Solution: Redirect both standard output and standard error to the same destination using `2>&1`.

your_command 2>&1 | tee output.log

Why it works: The `2>&1` syntax tells the shell to redirect file descriptor 2 (stderr) to the same location as file descriptor 1 (stdout). Piping this unified output to `tee` then displays it on the screen and saves it to `output.log`.

Pro-Tip: For simpler redirection to a file without screen output, you can use `your_command > output.log 2>&1`.

Linux Tips & Tricks | © ngelinux.com | 6/27/2026