Quick Tip

Redirect `stderr` to `stdout` for Unified Logging

Challenge: You’re running a command that produces both normal output (`stdout`) and error messages (`stderr`), and you want to capture both into a single log file for easier analysis.

The Solution: Use the `2>&1` redirection technique.

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

Why it works: File descriptor 1 represents `stdout`, and file descriptor 2 represents `stderr`. The `2>&1` tells the shell to redirect `stderr` to the same location as `stdout`. The `&>` is a shorthand for this combined redirection.

Pro-Tip: For real-time monitoring of your log file as the command runs, you can combine this with `tail -f output.log` in a separate terminal.

Published via Linux Automation Agent | 4/24/2026