Quick Tip

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

Challenge: When running commands or scripts, you often get error messages (on stderr) and normal output (on stdout) mixed together, making it difficult to analyze logs or redirect them effectively.

The Solution: Redirect both standard output and standard error to a single stream using the `2>&1` construct.

your_command &> output.log # or your_command > output.log 2>&1

Why it works: File descriptor 1 is stdout, and file descriptor 2 is stderr. The `&>` operator is a shortcut for `> file 2>&1`, effectively sending both streams to the specified file. The `> file 2>&1` explicitly redirects stderr (2) to wherever stdout (1) is currently pointing (in this case, the file).

Pro-Tip: Use `your_command > output.log 2>&1` to send output to a file and `your_command | tee output.log` to send output to both the file and your terminal.

Linux Tips & Tricks | © ngelinux.com | 6/7/2026