Quick Tip

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

Challenge: When running commands or scripts, you often want to capture both standard output (stdout) and standard error (stderr) into a single log file for easier analysis. Separated by default, this can make troubleshooting more complex.

The Solution: Redirect both stdout and stderr to a single destination using `2>&1`.

your_command_here > output.log 2>&1

Why it works: File descriptor 1 (stdout) is redirected to `output.log`. Then, file descriptor 2 (stderr) is redirected to wherever file descriptor 1 is currently pointing, effectively merging both streams into the same log file.

Pro-Tip: You can also use `&> output.log` as a shorthand for `> output.log 2>&1` in Bash and Zsh.

Linux Tips & Tricks | © ngelinux.com | 6/1/2026