Quick Tip

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

Challenge: When running commands or scripts, error messages (stderr) and normal output (stdout) are often displayed separately, making it difficult to consolidate logs or analyze both streams simultaneously.

The Solution: Redirecting stderr to stdout using `2>&1` allows you to capture both streams into a single destination.

your_command 2>&1 | tee /path/to/your/log_file.log

Why it works: File descriptor 1 represents stdout, and file descriptor 2 represents stderr. By redirecting `2` to `1` (`2>&1`), you ensure that all stderr output is sent to the same place as stdout. The `tee` command then splits this combined stream to both the terminal and your specified log file.

Pro-Tip: You can also use `your_command > /path/to/output.log 2>&1` to redirect both stdout and stderr directly to a file without displaying it on the terminal.

Linux Tips & Tricks | © ngelinux.com | 6/8/2026