Quick Tip

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

Challenge: When running commands or scripts, error messages (stderr) and normal output (stdout) can get interleaved or lost, making it difficult to analyze results or debug issues.

The Solution: Redirect both standard error (stderr) and standard output (stdout) to the same destination.

your_command 2>&1 | tee output.log

Why it works: The `2>&1` syntax tells the shell to redirect file descriptor 2 (stderr) to file descriptor 1 (stdout). The `tee output.log` command then captures this combined stream and also displays it on your terminal, while saving it to `output.log`.

Pro-Tip: Use `your_command > output.log 2>&1` to send both stdout and stderr directly to the file without displaying it on the terminal.

Linux Tips & Tricks | © ngelinux.com | 5/19/2026